Rick Riordan The Tyrant's Tomb (The Trials of Apollo Book 4) (Paperback)
Author: Rick Riordan. The fourth book in Rick Riordan's The Trial of Apollo series. Title: The Tyrant's Tomb (The Trials of Apollo Book 4). Series: Trials of Apollo. Well, for one thing, he's been turned into a human and banished from Olympus.