The Hidden Oracle
Rick Riordan
The Trials of Apollo (1)
All Our Broken Idols
Paul M.M. Cooper
Bug Bounty Bootcamp
Vickie Li
Percy Jackson's Greek Gods
Rick Riordan & John Rocco
Percy Jackson's Companion Books (3)
The Game of Life and How to Play It: Prosperity Classics
Florence Scovel Shinn & Gail Thackray