Katabasis
R. F. Kuang
The Battle of the Labyrinth
Rick Riordan
Percy Jackson and the Olympians (4)
Thus Spoke Zarathustra
Friedrich Nietzsche
The Game of Life and How to Play It: Prosperity Classics
Florence Scovel Shinn & Gail Thackray
Percy Jackson's Greek Gods
Rick Riordan & John Rocco
Percy Jackson's Companion Books (3)