Below is the complete list of Alan Merrett’s The Horus Heresy books in order. For this series, the chronological reading order is the same as the order of publication.
Publication Order of The Horus Heresy Books
Visions of War (2004)
by Alan Merrett
Visions of War was published in 2004 and is listed as book #1 in the The Horus Heresy series.- Visions of Darkness (2005)
by Alan Merrett
Published in 2005, Visions of Darkness is listed as book #2 in the The Horus Heresy series. 
Visions of Treachery (2005)
by Alan Merrett
Visions of Treachery is a 2005 release and appears as book #3 in the The Horus Heresy series.
False Gods (2006)
by Alan Merrett
In the The Horus Heresy series, False Gods is book #4 and was published in 2006.
Horus Rising (2006)
by Alan Merrett
Horus Rising was first published in 2006; within the The Horus Heresy series, it is listed as book #5.
Galaxy in Flames (2006)
by Alan Merrett
Galaxy in Flames was published in 2006 and is listed as book #6 in the The Horus Heresy series.
Visions of Death: Iconic images of the Imperium, betrayal and war (2006)
by Alan Merrett
Published in 2006, Visions of Death: Iconic images of the Imperium, betrayal and war is listed as book #7 in the The Horus Heresy series.- The Flight of the Eisenstein (2007)
by Alan Merrett
The Flight of the Eisenstein is a 2007 release and appears as book #8 in the The Horus Heresy series. - Collected Visions (2007)
by Alan Merrett
In the The Horus Heresy series, Collected Visions is book #9 and was published in 2007. - Fulgrim (2007)
by Alan Merrett
Fulgrim was first published in 2007; within the The Horus Heresy series, it is listed as book #10. - Descent of Angels (2007)
by Alan Merrett
Descent of Angels was published in 2007 and is listed as book #11 in the The Horus Heresy series. 
Battle for the Abyss (2008)
by Alan Merrett
Published in 2008, Battle for the Abyss is listed as book #12 in the The Horus Heresy series.
Legion (2008)
by Alan Merrett
Legion is a 2008 release and appears as book #13 in the The Horus Heresy series.
Mechanicum (2008)
by Alan Merrett
In the The Horus Heresy series, Mechanicum is book #14 and was published in 2008.- Fallen Angels (2009)
by Alan Merrett
Fallen Angels was first published in 2009; within the The Horus Heresy series, it is listed as book #15. - Tales of Heresy (2009)
by Alan Merrett
Tales of Heresy was published in 2009 and is listed as book #16 in the The Horus Heresy series. 
Brennende Galaxis (2009)
by Alan Merrett
Published in 2009, Brennende Galaxis is listed as book #17 in the The Horus Heresy series.
Nemesis (2010)
by Alan Merrett
Nemesis is a 2010 release and appears as book #18 in the The Horus Heresy series.- A Thousand Sons (2010)
by Alan Merrett
In the The Horus Heresy series, A Thousand Sons is book #19 and was published in 2010. 
The First Heretic (2010)
by Alan Merrett
The First Heretic was first published in 2010; within the The Horus Heresy series, it is listed as book #20.
Prospero Burns (2010)
by Alan Merrett
Prospero Burns was published in 2010 and is listed as book #21 in the The Horus Heresy series.
Oath of Moment (2010)
by Alan Merrett
Published in 2010, Oath of Moment is listed as book #22 in the The Horus Heresy series.
Am Abgrund (2011)
by Alan Merrett
Am Abgrund is a 2011 release and appears as book #23 in the The Horus Heresy series.
Legion of One (2011)
by Alan Merrett
In the The Horus Heresy series, Legion of One is book #24 and was published in 2011.
Age of Darkness (2011)
by Alan Merrett
Age of Darkness was first published in 2011; within the The Horus Heresy series, it is listed as book #25.- Savage Weapons (2011)
by Alan Merrett
Savage Weapons was published in 2011 and is listed as book #26 in the The Horus Heresy series. - Promethean Sun (2011)
by Alan Merrett
Published in 2011, Promethean Sun is listed as book #27 in the The Horus Heresy series. - The Iron Within (2011)
by Alan Merrett
The Iron Within is a 2011 release and appears as book #28 in the The Horus Heresy series. - The Last Remembrancer (2011)
by Alan Merrett
In the The Horus Heresy series, The Last Remembrancer is book #29 and was published in 2011. - Little Horus (2011)
by Alan Merrett
Little Horus was first published in 2011; within the The Horus Heresy series, it is listed as book #30. - The Face of Treachery (2011)
by Alan Merrett
The Face of Treachery was published in 2011 and is listed as book #31 in the The Horus Heresy series. - Liar’s Due (2011)
by Alan Merrett
Published in 2011, Liar’s Due is listed as book #32 in the The Horus Heresy series. - Forgotten Sons (2011)
by Alan Merrett
Forgotten Sons is a 2011 release and appears as book #33 in the The Horus Heresy series. - Rebirth (2011)
by Alan Merrett
In the The Horus Heresy series, Rebirth is book #34 and was published in 2011. 
Engel der Tiefe (2011)
by Alan Merrett
Engel der Tiefe was first published in 2011; within the The Horus Heresy series, it is listed as book #35.- The Outcast Dead (2011)
by Alan Merrett
The Outcast Dead was published in 2011 and is listed as book #36 in the The Horus Heresy series. - Deliverance Lost (2011)
by Alan Merrett
Published in 2011, Deliverance Lost is listed as book #37 in the The Horus Heresy series. - Know No Fear (2012)
by Alan Merrett
Know No Fear is a 2012 release and appears as book #38 in the The Horus Heresy series. - The Reflection Crack’d (2012)
by Alan Merrett
In the The Horus Heresy series, The Reflection Crack’d is book #39 and was published in 2012. - Feat of Iron (2012)
by Alan Merrett
Feat of Iron was first published in 2012; within the The Horus Heresy series, it is listed as book #40. - The Serpent Beneath (2012)
by Alan Merrett
The Serpent Beneath was published in 2012 and is listed as book #41 in the The Horus Heresy series. - The Lion (2012)
by Alan Merrett
Published in 2012, The Lion is listed as book #42 in the The Horus Heresy series. - The Primarchs (2012)
by Alan Merrett
The Primarchs is a 2012 release and appears as book #43 in the The Horus Heresy series. - Butcher’s Nails (2012)
by Alan Merrett
In the The Horus Heresy series, Butcher’s Nails is book #44 and was published in 2012. - Kryptos (2012)
by Alan Merrett
Kryptos was first published in 2012; within the The Horus Heresy series, it is listed as book #45. - Fear to Tread (2012)
by Alan Merrett
Fear to Tread was published in 2012 and is listed as book #46 in the The Horus Heresy series. - Grey Angel (2012)
by Alan Merrett
Published in 2012, Grey Angel is listed as book #47 in the The Horus Heresy series. - Shadows of Treachery (2012)
by Alan Merrett
Shadows of Treachery is a 2012 release and appears as book #48 in the The Horus Heresy series. 
Angel Exterminatus (2012)
by Alan Merrett
In the The Horus Heresy series, Angel Exterminatus is book #49 and was published in 2012.
Brotherhood of the Storm (2012)
by Alan Merrett
Brotherhood of the Storm was first published in 2012; within the The Horus Heresy series, it is listed as book #50.- Lost Sons (2012)
by Alan Merrett
Lost Sons was published in 2012 and is listed as book #51 in the The Horus Heresy series. - Sword of Truth (2012)
by Alan Merrett
Published in 2012, Sword of Truth is listed as book #52 in the The Horus Heresy series. - Betrayer (2012)
by Alan Merrett
Betrayer is a 2012 release and appears as book #53 in the The Horus Heresy series. - Warmaster (2012)
by Alan Merrett
In the The Horus Heresy series, Warmaster is book #54 and was published in 2012. - Strike and Fade (2012)
by Alan Merrett
Strike and Fade was first published in 2012; within the The Horus Heresy series, it is listed as book #55. - Veritas Ferrum (2012)
by Alan Merrett
Veritas Ferrum was published in 2012 and is listed as book #56 in the The Horus Heresy series. - The Imperial Truth (2013)
by Alan Merrett
Published in 2013, The Imperial Truth is listed as book #57 in the The Horus Heresy series. - Dark Heart (2013)
by Alan Merrett
Dark Heart is a 2013 release and appears as book #58 in the The Horus Heresy series. 
The Gates of Terra (2013)
by Alan Merrett
In the The Horus Heresy series, The Gates of Terra is book #59 and was published in 2013.- The Sigillite (2013)
by Alan Merrett
The Sigillite was first published in 2013; within the The Horus Heresy series, it is listed as book #60. - Burden of Duty & Grey Angel (2013)
by Alan Merrett
Burden of Duty & Grey Angel was published in 2013 and is listed as book #61 in the The Horus Heresy series. - Wolf Hunt (2013)
by Alan Merrett
Published in 2013, Wolf Hunt is listed as book #62 in the The Horus Heresy series. 
Mark of Calth (2013)
by Alan Merrett
Mark of Calth is a 2013 release and appears as book #63 in the The Horus Heresy series.- Death of a Silversmith (2013)
by Alan Merrett
In the The Horus Heresy series, Death of a Silversmith is book #64 and was published in 2013. 
Distant Echoes of Old Night (2013)
by Alan Merrett
Distant Echoes of Old Night was first published in 2013; within the The Horus Heresy series, it is listed as book #65.- The Divine Word (2013)
by Alan Merrett
The Divine Word was published in 2013 and is listed as book #66 in the The Horus Heresy series. - Honour to the Dead (2013)
by Alan Merrett
Published in 2013, Honour to the Dead is listed as book #67 in the The Horus Heresy series. - Scorched Earth (2013)
by Alan Merrett
Scorched Earth is a 2013 release and appears as book #68 in the The Horus Heresy series. 
The Unremembered Empire (2013)
by Alan Merrett
In the The Horus Heresy series, The Unremembered Empire is book #69 and was published in 2013.- Censure (2013)
by Alan Merrett
Censure was first published in 2013; within the The Horus Heresy series, it is listed as book #70. - Macragge’s Honour (2013)
by Alan Merrett
Macragge’s Honour was published in 2013 and is listed as book #71 in the The Horus Heresy series. - Tallarn: Executioner (2013)
by Alan Merrett
Published in 2013, Tallarn: Executioner is listed as book #72 in the The Horus Heresy series. - Thief of Revelations (2013)
by Alan Merrett
Thief of Revelations is a 2013 release and appears as book #73 in the The Horus Heresy series. - Vulkan Lives (2013)
by Alan Merrett
In the The Horus Heresy series, Vulkan Lives is book #74 and was published in 2013. - Khârn: The Eightfold Path (2013)
by Alan Merrett
Khârn: The Eightfold Path was first published in 2013; within the The Horus Heresy series, it is listed as book #75. - Cypher: Guardian of Order (2013)
by Alan Merrett
Cypher: Guardian of Order was published in 2013 and is listed as book #76 in the The Horus Heresy series. 
The Wolf of Ash and Fire (2014)
by Alan Merrett
Published in 2014, The Wolf of Ash and Fire is listed as book #77 in the The Horus Heresy series.- Echoes of Ruin: (2014)
by Alan Merrett
Echoes of Ruin: is a 2014 release and appears as book #78 in the The Horus Heresy series. - Wolf’s Claw (2014)
by Alan Merrett
In the The Horus Heresy series, Wolf’s Claw is book #79 and was published in 2014. - Templar (2014)
by Alan Merrett
Templar was first published in 2014; within the The Horus Heresy series, it is listed as book #80. - Ravenlord (2014)
by Alan Merrett
Ravenlord was published in 2014 and is listed as book #81 in the The Horus Heresy series. - Vengeful Spirit (2014)
by Alan Merrett
Published in 2014, Vengeful Spirit is listed as book #82 in the The Horus Heresy series. - The Devine Adoratrice (2014)
by Alan Merrett
The Devine Adoratrice is a 2014 release and appears as book #83 in the The Horus Heresy series. - Scars (2014)
by Alan Merrett
In the The Horus Heresy series, Scars is book #84 and was published in 2014. - Heart of the Conquerer (2014)
by Alan Merrett
Heart of the Conquerer was first published in 2014; within the The Horus Heresy series, it is listed as book #85. 
Sedition’s Gate (2014)
by Alan Merrett
Sedition’s Gate was published in 2014 and is listed as book #86 in the The Horus Heresy series.- The Damnation of Pythos (2014)
by Alan Merrett
Published in 2014, The Damnation of Pythos is listed as book #87 in the The Horus Heresy series. - The Purge (2014)
by Alan Merrett
The Purge is a 2014 release and appears as book #88 in the The Horus Heresy series. - The Long Night (2014)
by Alan Merrett
In the The Horus Heresy series, The Long Night is book #89 and was published in 2014. - Legacies of Betrayal (2014)
by Alan Merrett
Legacies of Betrayal was first published in 2014; within the The Horus Heresy series, it is listed as book #90. - Child of Night (2014)
by Alan Merrett
Child of Night was published in 2014 and is listed as book #91 in the The Horus Heresy series. - Daemonology (2014)
by Alan Merrett
Published in 2014, Daemonology is listed as book #92 in the The Horus Heresy series. - The Final Compliance of Sixty-Three Fourteen (2014)
by Alan Merrett
The Final Compliance of Sixty-Three Fourteen is a 2014 release and appears as book #93 in the The Horus Heresy series. - The Seventh Serpent (2014)
by Alan Merrett
In the The Horus Heresy series, The Seventh Serpent is book #94 and was published in 2014. - Stratagem (2014)
by Alan Merrett
Stratagem was first published in 2014; within the The Horus Heresy series, it is listed as book #95. - Vorax (2014)
by Alan Merrett
Vorax was published in 2014 and is listed as book #96 in the The Horus Heresy series. - The Value of Fear (2014)
by Alan Merrett
Published in 2014, The Value of Fear is listed as book #97 in the The Horus Heresy series. - Brotherhood of the Moon (2014)
by Alan Merrett
Brotherhood of the Moon is a 2014 release and appears as book #98 in the The Horus Heresy series. - Garro: Shield of Lies (2015)
by Alan Merrett
In the The Horus Heresy series, Garro: Shield of Lies is book #99 and was published in 2015. - Imperfect (2015)
by Alan Merrett
Imperfect was first published in 2015; within the The Horus Heresy series, it is listed as book #100. - Sins of the Father (2015)
by Alan Merrett
Sins of the Father was published in 2015 and is listed as book #101 in the The Horus Heresy series. - Howl of the Hearthworld (2015)
by Alan Merrett
Published in 2015, Howl of the Hearthworld is listed as book #102 in the The Horus Heresy series. - A Safe and Shadowed Place (2015)
by Alan Merrett
A Safe and Shadowed Place is a 2015 release and appears as book #103 in the The Horus Heresy series. - Gunsight (2015)
by Alan Merrett
In the The Horus Heresy series, Gunsight is book #104 and was published in 2015. - Black Oculus (2015)
by Alan Merrett
Black Oculus was first published in 2015; within the The Horus Heresy series, it is listed as book #105. - The Eagle’s Talon (2015)
by Alan Merrett
The Eagle’s Talon was published in 2015 and is listed as book #106 in the The Horus Heresy series. - Wolf Mother (2015)
by Alan Merrett
Published in 2015, Wolf Mother is listed as book #107 in the The Horus Heresy series. - Twisted (2015)
by Alan Merrett
Twisted is a 2015 release and appears as book #108 in the The Horus Heresy series. 
Blades of the Traitor (2015)
by Alan Merrett
In the The Horus Heresy series, Blades of the Traitor is book #109 and was published in 2015.- Chirurgeon (2015)
by Alan Merrett
Chirurgeon was first published in 2015; within the The Horus Heresy series, it is listed as book #110. - Tallarn: Witness (2015)
by Alan Merrett
Tallarn: Witness was published in 2015 and is listed as book #111 in the The Horus Heresy series. - Iron Corpses (2015)
by Alan Merrett
Published in 2015, Iron Corpses is listed as book #112 in the The Horus Heresy series. - Tallarn: Ironclad (2015)
by Alan Merrett
Tallarn: Ironclad is a 2015 release and appears as book #113 in the The Horus Heresy series. - Raptor (2015)
by Alan Merrett
In the The Horus Heresy series, Raptor is book #114 and was published in 2015. - Hands of the Emperor (2015)
by Alan Merrett
Hands of the Emperor was first published in 2015; within the The Horus Heresy series, it is listed as book #115. - By the Lion’s Command (2015)
by Alan Merrett
By the Lion’s Command was published in 2015 and is listed as book #116 in the The Horus Heresy series. - Lord of the Red Sands (2015)
by Alan Merrett
Published in 2015, Lord of the Red Sands is listed as book #117 in the The Horus Heresy series. - All That Remains (2015)
by Alan Merrett
All That Remains is a 2015 release and appears as book #118 in the The Horus Heresy series. - The Phoenician (2015)
by Alan Merrett
In the The Horus Heresy series, The Phoenician is book #119 and was published in 2015. - Ironfire (2015)
by Alan Merrett
Ironfire was first published in 2015; within the The Horus Heresy series, it is listed as book #120. - Meduson (2015)
by Alan Merrett
Meduson was published in 2015 and is listed as book #121 in the The Horus Heresy series. - Artefacts (2015)
by Alan Merrett
Published in 2015, Artefacts is listed as book #122 in the The Horus Heresy series. - Cybernetica (2015)
by Alan Merrett
Cybernetica is a 2015 release and appears as book #123 in the The Horus Heresy series. - Wolf King (2015)
by Alan Merrett
In the The Horus Heresy series, Wolf King is book #124 and was published in 2015. - Deathfire (2015)
by Alan Merrett
Deathfire was first published in 2015; within the The Horus Heresy series, it is listed as book #125. - The Last Church (2015)
by Alan Merrett
The Last Church was published in 2015 and is listed as book #126 in the The Horus Heresy series. - The Honoured (2015)
by Alan Merrett
Published in 2015, The Honoured is listed as book #127 in the The Horus Heresy series. - Pharos (2015)
by Alan Merrett
Pharos is a 2015 release and appears as book #128 in the The Horus Heresy series. - Vow of Faith (2015)
by Alan Merrett
In the The Horus Heresy series, Vow of Faith is book #129 and was published in 2015. - The Either (2016)
by Alan Merrett
The Either was first published in 2016; within the The Horus Heresy series, it is listed as book #130. - The Heart of the Pharos (2016)
by Alan Merrett
The Heart of the Pharos was published in 2016 and is listed as book #131 in the The Horus Heresy series. - Eye of Terra (2016)
by Alan Merrett
Published in 2016, Eye of Terra is listed as book #132 in the The Horus Heresy series. - Tallarn: Siren (2016)
by Alan Merrett
Tallarn: Siren is a 2016 release and appears as book #133 in the The Horus Heresy series. - The Path of Heaven (2016)
by Alan Merrett
In the The Horus Heresy series, The Path of Heaven is book #134 and was published in 2016. - The Silent War (2016)
by Alan Merrett
The Silent War was first published in 2016; within the The Horus Heresy series, it is listed as book #135. - Angels of Caliban (2016)
by Alan Merrett
Angels of Caliban was published in 2016 and is listed as book #136 in the The Horus Heresy series. - War Without End (2016)
by Alan Merrett
Published in 2016, War Without End is listed as book #137 in the The Horus Heresy series. - Blackshield (2016)
by Alan Merrett
Blackshield is a 2016 release and appears as book #138 in the The Horus Heresy series. - Myriad (2016)
by Alan Merrett
In the The Horus Heresy series, Myriad is book #139 and was published in 2016. - The Harrowing (2016)
by Alan Merrett
The Harrowing was first published in 2016; within the The Horus Heresy series, it is listed as book #140. - The Unburdened (2016)
by Alan Merrett
The Unburdened was published in 2016 and is listed as book #141 in the The Horus Heresy series. - Praetorian of Dorn (2016)
by Alan Merrett
Published in 2016, Praetorian of Dorn is listed as book #142 in the The Horus Heresy series. - Master of the First (2016)
by Alan Merrett
Master of the First is a 2016 release and appears as book #143 in the The Horus Heresy series. - Sons of the Forge (2016)
by Alan Merrett
In the The Horus Heresy series, Sons of the Forge is book #144 and was published in 2016. - The Soul, Severed (2016)
by Alan Merrett
The Soul, Severed was first published in 2016; within the The Horus Heresy series, it is listed as book #145. - The Last Son of Prospero (2016)
by Alan Merrett
The Last Son of Prospero was published in 2016 and is listed as book #146 in the The Horus Heresy series. - Virtues of the Sons (2017)
by Alan Merrett
Published in 2017, Virtues of the Sons is listed as book #147 in the The Horus Heresy series. - Ordo Sinister (2017)
by Alan Merrett
Ordo Sinister is a 2017 release and appears as book #148 in the The Horus Heresy series. - The Ember Wolves (2017)
by Alan Merrett
In the The Horus Heresy series, The Ember Wolves is book #149 and was published in 2017. - Galaxis in Flammen (2017)
by Alan Merrett
Galaxis in Flammen was first published in 2017; within the The Horus Heresy series, it is listed as book #150. - Dark Angels (2017)
by Alan Merrett
Dark Angels was published in 2017 and is listed as book #151 in the The Horus Heresy series. - Shattered Legions (2017)
by Alan Merrett
Published in 2017, Shattered Legions is listed as book #152 in the The Horus Heresy series. - The Master of Mankind (2017)
by Alan Merrett
The Master of Mankind is a 2017 release and appears as book #153 in the The Horus Heresy series. - Allegiance (2017)
by Alan Merrett
In the The Horus Heresy series, Allegiance is book #154 and was published in 2017. - Perturabo: Hammer of Olympia (2017)
by Alan Merrett
Perturabo: Hammer of Olympia was first published in 2017; within the The Horus Heresy series, it is listed as book #155. - Abyssus (2017)
by Alan Merrett
Abyssus was published in 2017 and is listed as book #156 in the The Horus Heresy series. - Dark Compliance (2017)
by Alan Merrett
Published in 2017, Dark Compliance is listed as book #157 in the The Horus Heresy series. - Tallarn (2017)
by Alan Merrett
Tallarn is a 2017 release and appears as book #158 in the The Horus Heresy series. - Prince of Crows (2017)
by Alan Merrett
In the The Horus Heresy series, Prince of Crows is book #159 and was published in 2017. - Blackshields: The False War (2017)
by Alan Merrett
Blackshields: The False War was first published in 2017; within the The Horus Heresy series, it is listed as book #160. - Ruinstorm (2017)
by Alan Merrett
Ruinstorm was published in 2017 and is listed as book #161 in the The Horus Heresy series. - The Laurel of Defiance (2017)
by Alan Merrett
Published in 2017, The Laurel of Defiance is listed as book #162 in the The Horus Heresy series. - The Crimson Fist (2017)
by Alan Merrett
The Crimson Fist is a 2017 release and appears as book #163 in the The Horus Heresy series. - Aurelian (2017)
by Alan Merrett
In the The Horus Heresy series, Aurelian is book #164 and was published in 2017. - Wolf at the Door (2017)
by Alan Merrett
Wolf at the Door was first published in 2017; within the The Horus Heresy series, it is listed as book #165. - Serpent (2017)
by Alan Merrett
Serpent was published in 2017 and is listed as book #166 in the The Horus Heresy series. - Immortal Duty (2017)
by Alan Merrett
Published in 2017, Immortal Duty is listed as book #167 in the The Horus Heresy series. - Garro: Burden of Duty (2017)
by Alan Merrett
Garro: Burden of Duty is a 2017 release and appears as book #168 in the The Horus Heresy series. - Hunter’s Moon (2017)
by Alan Merrett
In the The Horus Heresy series, Hunter’s Moon is book #169 and was published in 2017. - Old Earth (2017)
by Alan Merrett
Old Earth was first published in 2017; within the The Horus Heresy series, it is listed as book #170. - Garro: Ashes of Fealty (2017)
by Alan Merrett
Garro: Ashes of Fealty was published in 2017 and is listed as book #171 in the The Horus Heresy series. - The Shadowmasters (2017)
by Alan Merrett
Published in 2017, The Shadowmasters is listed as book #172 in the The Horus Heresy series. - Garro: Oath of Moment (2017)
by Alan Merrett
Garro: Oath of Moment is a 2017 release and appears as book #173 in the The Horus Heresy series. - Garro: Sword of Truth (2017)
by Alan Merrett
In the The Horus Heresy series, Garro: Sword of Truth is book #174 and was published in 2017. - Raven’s Flight (2017)
by Alan Merrett
Raven’s Flight was first published in 2017; within the The Horus Heresy series, it is listed as book #175. - Garro: Legion of One (2017)
by Alan Merrett
Garro: Legion of One was published in 2017 and is listed as book #176 in the The Horus Heresy series. - Echoes of Revelation (2017)
by Alan Merrett
Published in 2017, Echoes of Revelation is listed as book #177 in the The Horus Heresy series. - Duty Waits (2017)
by Alan Merrett
Duty Waits is a 2017 release and appears as book #178 in the The Horus Heresy series. - The Crimson King (2017)
by Alan Merrett
In the The Horus Heresy series, The Crimson King is book #179 and was published in 2017. - Magisterium (2017)
by Alan Merrett
Magisterium was first published in 2017; within the The Horus Heresy series, it is listed as book #180. - Now Peals Midnight (2017)
by Alan Merrett
Now Peals Midnight was published in 2017 and is listed as book #181 in the The Horus Heresy series. - Dreams of Unity (2017)
by Alan Merrett
Published in 2017, Dreams of Unity is listed as book #182 in the The Horus Heresy series. - The Board is Set (2017)
by Alan Merrett
The Board is Set is a 2017 release and appears as book #183 in the The Horus Heresy series. - Gefallene Engel (2017)
by Alan Merrett
In the The Horus Heresy series, Gefallene Engel is book #184 and was published in 2017. - Blood Games (2018)
by Alan Merrett
Blood Games was first published in 2018; within the The Horus Heresy series, it is listed as book #185. - The Burden of Loyalty (2018)
by Alan Merrett
The Burden of Loyalty was published in 2018 and is listed as book #186 in the The Horus Heresy series. - Corax (2018)
by Alan Merrett
Published in 2018, Corax is listed as book #187 in the The Horus Heresy series. - Wolfsbane (2018)
by Alan Merrett
Wolfsbane is a 2018 release and appears as book #188 in the The Horus Heresy series. - Born of Flame (2018)
by Alan Merrett
In the The Horus Heresy series, Born of Flame is book #189 and was published in 2018. - Slaves to Darkness (2018)
by Alan Merrett
Slaves to Darkness was first published in 2018; within the The Horus Heresy series, it is listed as book #190. - Blackshields: The Red Fief (2018)
by Alan Merrett
Blackshields: The Red Fief was published in 2018 and is listed as book #191 in the The Horus Heresy series. - Two Metaphysical Blades (2018)
by Alan Merrett
Published in 2018, Two Metaphysical Blades is listed as book #192 in the The Horus Heresy series. - Prologue to Nikaea (2018)
by Alan Merrett
Prologue to Nikaea is a 2018 release and appears as book #193 in the The Horus Heresy series. - Garro: Weapon of Fate (2018)
by Alan Merrett
In the The Horus Heresy series, Garro: Weapon of Fate is book #194 and was published in 2018. - Heralds of the Siege (2018)
by Alan Merrett
Heralds of the Siege was first published in 2018; within the The Horus Heresy series, it is listed as book #195. - The Lords of Terra (2018)
by Alan Merrett
The Lords of Terra was published in 2018 and is listed as book #196 in the The Horus Heresy series. - Titandeath (2018)
by Alan Merrett
Published in 2018, Titandeath is listed as book #197 in the The Horus Heresy series. - Abyssal (2018)
by Alan Merrett
Abyssal is a 2018 release and appears as book #198 in the The Horus Heresy series. 
Visions of Heresy (2018)
by Alan Merrett
In the The Horus Heresy series, Visions of Heresy is book #199 and was published in 2018.- Hubris of Monarchia (2018)
by Alan Merrett
Hubris of Monarchia was first published in 2018; within the The Horus Heresy series, it is listed as book #200. - A Rose Watered with Blood (2018)
by Alan Merrett
A Rose Watered with Blood was published in 2018 and is listed as book #201 in the The Horus Heresy series. - Nightfane (2019)
by Alan Merrett
Published in 2019, Nightfane is listed as book #202 in the The Horus Heresy series. - The Buried Dagger (2019)
by Alan Merrett
The Buried Dagger is a 2019 release and appears as book #203 in the The Horus Heresy series. - Mercy of the Dragon (2019)
by Alan Merrett
In the The Horus Heresy series, Mercy of the Dragon is book #204 and was published in 2019. - Blackshields: The Broken Chain (2019)
by Alan Merrett
Blackshields: The Broken Chain was first published in 2019; within the The Horus Heresy series, it is listed as book #205. - Valdor: Birth of the Imperium (2020)
by Alan Merrett
Valdor: Birth of the Imperium was published in 2020 and is listed as book #206 in the The Horus Heresy series. - The Serpent’s Dance (2020)
by Alan Merrett
Published in 2020, The Serpent’s Dance is listed as book #207 in the The Horus Heresy series. - The Lightning Hall (2020)
by Alan Merrett
The Lightning Hall is a 2020 release and appears as book #208 in the The Horus Heresy series. - Luther: First of the Fallen (2021)
by Alan Merrett
In the The Horus Heresy series, Luther: First of the Fallen is book #209 and was published in 2021. - Errant Knights (2021)
by Alan Merrett
Errant Knights was first published in 2021; within the The Horus Heresy series, it is listed as book #210. - Eater of Dreams (2021)
by Alan Merrett
Eater of Dreams was published in 2021 and is listed as book #211 in the The Horus Heresy series. 
Sigismund: The Eternal Crusader (2022)
by Alan Merrett
Published in 2022, Sigismund: The Eternal Crusader is listed as book #212 in the The Horus Heresy series.- Lupercal’s War (2022)
by Alan Merrett
Lupercal’s War is a 2022 release and appears as book #213 in the The Horus Heresy series. - The Fields Of Abundance (2022)
by Alan Merrett
In the The Horus Heresy series, The Fields Of Abundance is book #214 and was published in 2022. - Garro: Knight of Grey (2023)
by Alan Merrett
Garro: Knight of Grey was first published in 2023; within the The Horus Heresy series, it is listed as book #215. - Primacy (2023)
by Alan Merrett
Primacy was published in 2023 and is listed as book #216 in the The Horus Heresy series. - The Last Loyalist (2023)
by Alan Merrett
Published in 2023, The Last Loyalist is listed as book #217 in the The Horus Heresy series. 
Eidolon: The Auric Hammer (2024)
by Alan Merrett
Eidolon: The Auric Hammer is a 2024 release and appears as book #218 in the The Horus Heresy series.- Ashes of the Imperium (2025)
by Alan Merrett
In the The Horus Heresy series, Ashes of the Imperium is book #219 and was published in 2025.
About The Horus Heresy
Alan Merrett’s Horus Heresy books are illustrated histories of the civil war that transformed the Imperium of Man and created the political, military, and religious foundations of Warhammer 40,000. They should not be confused with Black Library’s much larger Horus Heresy novel sequence, which began with Dan Abnett’s Horus Rising. Merrett’s volumes are art-led background books, combining historical narration, character profiles, maps, heraldry, concept sketches, and dramatic images originally created in connection with the Horus Heresy collectible card game.
The sequence presents the Heresy from a broad historical perspective rather than following one protagonist through a conventional narrative. At its center is Horus Lupercal, the Emperor’s most trusted primarch and commander of the Great Crusade. His corruption divides the eighteen active Space Marine Legions between loyalists and traitors, turning a campaign intended to unite humanity into an interstellar war involving betrayal, daemonic influence, shattered alliances, and the destruction of worlds.
Visions of War establishes the Great Crusade, the primarchs, the Space Marine Legions, and the military culture of the early Imperium. Horus has been elevated to Warmaster, placing enormous authority in his hands while the Emperor withdraws to Terra. The volume provides the political and mythological foundation needed to understand why Horus’s eventual rebellion is so devastating: he is not an external invader but the favoured son entrusted with command of the Imperium’s greatest armies.
Visions of Darkness moves more deeply into Horus’s corruption and the influence of Chaos. The growing conspiracy among the future Traitor Legions turns private resentment into organized rebellion, while loyalty to the Emperor begins to fracture among primarchs, commanders, and ordinary legionaries. The book emphasizes the spiritual dimension of the war, showing how pride, ambition, jealousy, and forbidden knowledge become weapons capable of corrupting even genetically engineered warriors.
Visions of Treachery develops the rebellion through the purging of loyalists at Isstvan III, the destruction of Prospero, and the Drop Site Massacre at Isstvan V. These events transform suspicion into open civil war and leave several Loyalist Legions devastated. The conflict becomes increasingly difficult to contain as communications fail, former allies attack one another, and the Imperium struggles to understand the scale of Horus’s preparations.
Visions of Death carries the history toward its catastrophic conclusion. The Traitor Legions advance on Terra, the Loyalists attempt to preserve the Emperor’s realm, and the war culminates in the confrontation between Horus and the Emperor. The victory that follows is profoundly incomplete: Horus is destroyed, but the Emperor is mortally wounded and confined to the Golden Throne, leaving humanity to inherit a darker and more authoritarian Imperium.
The four original volumes were later combined in The Horus Heresy: Collected Visions. This omnibus reproduces the complete sequence in one book and should not be counted as a fifth continuation after Visions of Death. Visions of Heresy: War, Darkness, Treachery and Death is another collected presentation, revised and expanded with additional artwork and historical material as the wider Horus Heresy setting developed. Readers generally need either the four individual volumes or one of the collected editions, not every version.
Merrett’s series is most valuable as a visual chronicle of the Heresy’s complete shape. The later novels provide far greater character depth and battlefield detail, but these books retain the clarity of a legendary history: the Emperor’s sons divided, the Legions turned against one another, and an age of expansion collapsing into ten thousand years of war.