Percy Jackson and the Olympians Collection 6 Books Set By Rick Riordan:

Percy Jackson and the Olympians: The Chalice of the Gods:
Percy Jackson has saved the world multiple times - battling monsters, Titans, even giants - but these days the modern-day son of Poseidon is hoping for a regular final year at school. Too bad the Greek gods have other plans, and three new quests for Percy to complete.

Percy Jackson and the Lightning Thief:
I was just a normal kid, going to school, playing basketball, skateboarding. The usual. Until I accidentally vaporized my maths teacher. Now I spend my time battling monsters and generally trying to stay alive.

Percy Jackson and the Sea of Monsters:
It's not easy being a half-blood these days. Even a simple game of dodgeball becomes a death match against an ugly gang of cannibal giants - and that was only the beginning.

Percy Jackson and the Titan's Curse:
But when you're the son of a Greek God, it happens. And now my friend Annabeth is missing, a Goddess is in chains and only five half-blood heroes can join the quest to defeat the doomsday monster.

Percy Jackson and the Battle of the Labyrinth:
As the son of a Greek God, I've had my share of near-death disaster - and now my arch enemy Luke wants to invade our camp via an ancient labyrinth. If he succeeds, thousands of bloodthirsty monsters will attack.

Percy Jackson and the Last Olympian:
It happens when you're the son of Poseidon, God of the Sea. According to an ancient prophecy, I turn sixteen and the fate of the entire world is on me. But no pressure. Now Kronos, Lord of the Titans, is beginning his attack on New York City.