Below is the complete list of Rick Riordan’s Camp Half-Blood books in publication order. For this series, the chronological reading order is the same as the order of publication.
Camp Half-Blood Books in Publication Order
- The Wild Zone (2026)
(With Annabelle Oh)
The Wild Zone was published in 2026 and is listed as book #1 in the Camp Half-Blood series.
About Camp Half-Blood
Rick Riordan’s Camp Half-Blood series is a new branch of the Percy Jackson world, set inside the demigod training camp during a specific gap in the original timeline. Rather than retelling Percy Jackson’s main quests or expanding the later Roman and Apollo storylines, this series looks back to the period between The Lightning Thief and The Sea of Monsters, when Percy, Annabeth, and Grover are not always at camp and other young demigods have their own dangers to face.
That focus immediately gives the series a different purpose from Percy Jackson and the Olympians. Camp Half-Blood has always been one of the most important places in Riordan’s mythology world: part sanctuary, part training ground, part chaotic summer camp, and part battlefield waiting to happen. In the original books, readers mostly experience the camp through Percy’s eyes. The new Camp Half-Blood series opens the gates wider, shifting attention toward other campers whose stories were happening in the same world but outside Percy’s main narrative.
The first book, The Wild Zone, is co-written by Rick Riordan and Annabelle Oh. It introduces Katie Kim, a Korean American daughter of Ares who arrives at camp carrying a dangerous secret. Her story centers on a forbidden area of the camp forest known as the Wild Zone, a place that even campers and staff are not supposed to enter. When five new demigods are drawn into that dangerous territory, the adventure quickly becomes more than a reckless camp challenge. Ancient curses, monsters, disappearances, and hidden truths turn the forest into a test of survival and belonging.
Katie’s role as a daughter of Ares is especially interesting because the Ares cabin has often been seen through louder, more aggressive characters such as Clarisse La Rue. By giving the viewpoint to a new camper connected to the same god, the series has room to complicate what that cabin can mean. Being a child of Ares does not have to reduce a character to anger or battle instinct. It can also raise questions about fear, courage, identity, and what kind of strength a demigod actually needs.
The series is also notable because Riordan is collaborating with different coauthors for each book. Annabelle Oh writes the first installment with him, while later planned entries involve other writers, including Kyle Lukoff, Jade Adia, and Pablo Cartaya. That structure suggests a more open, ensemble-driven approach to the Camp Half-Blood world. Instead of one narrator carrying every adventure, the series can introduce different demigods, backgrounds, voices, and personal conflicts while still remaining inside the familiar Greek-mythology framework.
Because the books are set early in the Percy Jackson timeline, familiar faces and camp rules can appear without requiring the series to move beyond the later events of the wider universe. That makes the setting feel both nostalgic and fresh. Readers return to cabins, quests, monsters, godly parents, rivalries, and camp traditions, but the emotional center belongs to new heroes who are still trying to understand where they fit.
The Camp Half-Blood series works best as a focused expansion of the original Percy Jackson era. Its appeal is not simply that it returns to a beloved location, but that it treats the camp as a living place where many stories were always unfolding beyond Percy’s immediate view. The Wild Zone begins that idea by turning a hidden corner of the camp into a source of danger, mystery, and discovery, giving a new generation of demigods their own chance to prove that belonging at Camp Half-Blood often begins with surviving the impossible.