Percy Jackson isn't expecting freshman orientation to be any fun. But when a mysterious mortal acquaintance appears at his potential new school, followed by demon cheerleaders, things quickly move from bad to worse. In this fourth installment of the blockbuster series, time is running out as war between the Olympians and the evil Titan lord Kronos draws near. Even the safe haven of Camp Half-Blood grows more vulnerable by the minute as Kronos's army prepares to invade its once impenetrable borders. To stop the invasion, Percy and his demigod friends must set out on a quest through the Labyrinth - a sprawling underground world with stunning surprises at every turn.

It's not everyday you find yourself in combat with a half-lion, half-human. 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. Oh, and guess what? The Oracle has predicted that not all of us will survive...

It's not everyday you find yourself in combat with a half-lion, half-human. 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. Oh, and guess what? The Oracle has predicted that not all of us will survive...

The heroic son of Poseidon makes an action-packed comeback in the second must-read installment of Rick Riordan's amazing young readers series. Starring Percy Jackson, a "half blood" whose mother is human and whose father is the God of the Sea, Riordan's series combines cliffhanger adventure and Greek mythology lessons that results in true page-turners that get better with each installment. In this episode, The Sea of Monsters, Percy sets out to retrieve the Golden Fleece before his summer camp is destroyed, surpassing the first book's drama and setting the stage for more thrills to come.