Rick Riordan · novel-series
The 39 Clues books in order
A multi-author adventure series about the Cahill family’s worldwide race to assemble thirty-nine clues; Riordan wrote the opening novel.
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Reading order
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Publication order
- 1 The 39 Clues: The Maze of Bones
Book 1 · novel · 2008
Amy and Dan Cahill know their family is big, but they don’t realize how big until their grandmother Grace’s funeral. Relatives arrive from all over the world by special invitation. In Grace’s last will and testament, she issues this…
