
Camp Jupiter Classified
A Probatio's Journal
Rick Riordan(Author)
Puffin (Publisher)
Published on 21. May 2026
Book
Paperback/Softback
160 pages
978-0-241-82010-0 (ISBN)
Description
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!
More details
Language
English
Place of publication
United Kingdom
Publishing group
Penguin Random House Children's UK
Target group
Children/juvenile
Interest Age: From 9 to 16 years
Product notice
Paperback (UK-B)
Dimensions
Height: 195 mm
Width: 125 mm
Thickness: 16 mm
Weight
125 gr
ISBN-13
978-0-241-82010-0 (9780241820100)
Copyright in bibliographic data and cover images is held by Nielsen Book Services Limited or by the publishers or by their respective licensors: all rights reserved.
Schweitzer Classification
Other editions
Additional editions

Book
05/2020
Puffin
€14.00
Article exhausted; check different version

E-Book
05/2020
1st Edition
Puffin
€8.99
Available for download
Person
Rick Riordan, dubbed 'storyteller of the gods' by Publishers Weekly, is the author of five #1 New York Times best-selling middle grade series with millions of copies sold throughout the world, including Percy Jackson and the Olympians, now a live-action series on Disney+.