The Battle of the Labyrinth

The Battle of the Labyrinth is a 2008 American children's fantasy action-adventure middle grade children's fiction novel based on Greek mythology written by American author Rick Riordan. The fourth novel in the Percy Jackson & the Olympians series, the book was first published in the United States on 6 May 2008 by Hyperion Books for Children, an imprint of Disney Publishing Worldwide. It has been published in hardcover, audiobook, ebook, and large-print editions. The Battle of the Labyrinth has been translated into 29 languages from its original English.