Percy Jackson The Ultimate Collection 5 Books Set Epic Heroes Legendary Adventures by Rick Riordan:

Percy Jackson and the Lightning Thief:

I was just a normal kid, going to 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 Battle of the Labyrinth:

As the son of a Greek God, I've had my share of near-death disasters 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.

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.