Trials of Apollo 4: The Tyrant's Tomb
Rick Riordan
The Trials of Apollo (4)
The Will of the Many
James Islington
Hierarchy (1)
Trials of Apollo 4.5: Camp Jupiter Classified
Trials of Apollo (4.50)
Heroes: Volume II of Mythos
Stephen Fry
Mythos (2)
Thus Spoke Zarathustra
Friedrich Nietzsche