The battle of the Labyrinth /
Rick Riordan.
- 1st ed.
- New York : Hyperion Books for Children, c2008.
- Percy Jackson & the Olympians ; bk. 4 .
When demonic cheerleaders invade his high school, Percy Jackson hurries to Camp Half Blood, from whence he and his demigod friends set out on a quest through the Labyrinth, while the war between the Olympians and the evil Titan lord Kronos draws near.