The Hidden Oracle

*The Hidden Oracle* is the third book in Rick Riordan’s "Percy Jackson & the Olympians" spin-off series, *Heroes of Olympus*. It follows Percy Jackson and his friends as they face new challenges involving Greek and Roman gods. The story focuses on a young demigod named Apollo, who has been turned into a mortal teenager as punishment from the gods. He must navigate the mortal world, uncover secrets, and find ways to regain his divine status, all while dealing with enemies and alliances that threaten both gods and mortals. The novel combines adventure, humor, and mythology in a modern setting.