From Percy Jackson: Camp Half-Blood Confidential (An Official Rick Riordan Companion Book): Your Real Guide to the Demigod Training Camp (Trials of Apollo)
Rick Riordan
4
The Tyrant's Tomb
Rick Riordan
4.12
The Tower of Nero
Rick Riordan
4.6
Camp Jupiter Classified: A Probatio's Journal
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4.25
Percy Jackson and the Olympians: The Ultimate Guide