The trio battles Medusa and receives assistance from a water spirit.
Percy learns Chiron is his trainer, discovers his water-based powers, and makes friends like Annabeth. The trio battles Medusa and receives assistance from
Hades reveals the bolt was planted in Percy’s backpack; Percy defeats Ares to recover the Helm of Darkness. Part 5: Olympus and the Aftermath (Chapters 21-22) The Lightning Thief Chapters One–Three Summary & Analysis discovers his water-based powers
