Series Rick Riordan The 39 Clues

The 39 Clues #2 by Rick Riordan The Black Book of Buried Secrets (Companion Book) is a 2012 book by Rick Riordan and is book #2 in the The 39 Clues series. Check Price on Amazon

The 39 Clues #1 by Rick Riordan The Maze of Bones is a 2008 book by Rick Riordan and is book #1 in the The 39 Clues series. Check Price on Amazon