by Rick Riordan
First published 2020
New recruit Claudia's arrival coincides with strange occurrences plaguing Camp Jupiter. As suspicion falls on the daughter of Mercury, Claudia must document the bizarre incidents in her journal to clear her name and uncover an ancient secret that threatens the entire legion.
Genres: adventure, mystery, fantasy, young-adult
Vibes: atmospheric, fast-paced, suspenseful
Tropes: clearing-ones-name, found-family
Setting: Camp Jupiter-California-USA
176 pages · Hardcover · Disney Hyperion