The Battle of the Labyrinth is a 2008 fantasy-adventure novel based on Greek mythology; it is the fourth novel in the Percy Jackson & the Olympians series by Rick Riordan. Fictional demigod Percy Jackson, who is fifteen years old by the end of the book, tries to stop Luke Castellan and his army from invading Camp Half-Blood through Daedalus's labyrinth by trying to find Daedalus and convince him not to give Luke Ariadne's string, which would help Luke through the Labyrinth. It was released on 6 May 2008 in the US and Canada. It was received positively overall.
You shall delve in the darkness of the endless maze,The dead, the traitor and the lost one raise,You shall rise or fall by the ghost king's hand,The child of Athena's final stand,Destroy with a hero's final breath,And lose a love to worse than death
After being attacked by demon cheerleaders at his new school, Percy returns to Camp Half-Blood and learns about the Labyrinth; part of the palace of King Minos in Crete that was designed by Daedalus.