Camp Jupiter Classified: A Probatio’s Journal

Camp Jupiter Classified: A Probatio’s Journal is a companion book under The Trials of Apollo. It tells the story of Cladia, a legacy of Mercury and Probatio in the Fourth Cohort. It is set to be released in the spring of 2020.

Trivia

 * A sneak peak of the book was present in the Barnes & Noble edition of The Tyrant's Tomb.