- Series: The Trials of Apollo
- Imprint: Puffin
- ISBN: 9780241394182
- Length: 160 pages
- Price: £3.99
Camp Jupiter Classified
A Probatio's Journal
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An official companion guide to the bestselling Heroes of Olympus series, set in the incredible world of Percy Jackson!
It's the February after Gaea's defeat. Camp Jupiter, like everyone else, should be celebrating. But something is causing chaos.
Mysterious, sinister incidents are wreaking havoc throughout the camp. Suspicion quickly falls on Claudia, the Fourth Cohort's newest probatio. After all, the mischief started shortly after she stumbled into camp.
To find out the truth, delve into the pages of Claudia's diary. Through her eyewitness accounts, you'll visit the crime scenes (aka the camp grounds) including a row of seats in the coliseum, an underground aqueduct tunnel . . .
And you'll be right alongside Claudia when she discovers an ancient secret that may hold the key to Camp Jupiter's safety.
Return to the World of Percy Jackson in the best-selling, brand-new adventure featuring the original hero in Percy Jackson and the Olympians: Wrath of the Triple Goddess – out now!
It's the February after Gaea's defeat. Camp Jupiter, like everyone else, should be celebrating. But something is causing chaos.
Mysterious, sinister incidents are wreaking havoc throughout the camp. Suspicion quickly falls on Claudia, the Fourth Cohort's newest probatio. After all, the mischief started shortly after she stumbled into camp.
To find out the truth, delve into the pages of Claudia's diary. Through her eyewitness accounts, you'll visit the crime scenes (aka the camp grounds) including a row of seats in the coliseum, an underground aqueduct tunnel . . .
And you'll be right alongside Claudia when she discovers an ancient secret that may hold the key to Camp Jupiter's safety.
Return to the World of Percy Jackson in the best-selling, brand-new adventure featuring the original hero in Percy Jackson and the Olympians: Wrath of the Triple Goddess – out now!
About the series
A breathtaking new series from Percy Jackson creator, Rick Riordan. After angering his father Zeus, the god Apollo is cast down from Olympus. He must learn to survive in modern-day New York until he can somehow find a way to regain Zeus's favour.
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All editions
- Paperback 2026
- Ebook 2020
- Audio Download 2020







