Percy Jackson is about to be kicked out of boarding school...again. And that's the least of his troubles. Lately, mythological monsters and the gods of Mount Olympus seem to be walking straight out of the pages of Percy's Greek mythology textbook and into his life.

Half Boy. Half God. ALL Hero. Honestly, blowing up another school was the last thing I wanted to do. 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. So it's goodbye sunshine, hello darkness as four of us descend into the terrifying underground and beyond . . .

Half Boy. Half God. ALL Hero. Most people get presents on their sixteenth birthday. I get a prophecy that could save or destroy the world. 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. And the dreaded monster Typhon is also heading our way. So it's me and forty of my demi-god friends versus untold evil . . .