The Battle of the Labyrinth camp for the school year. On his fifteenth birthday at the summer's end, Percy receives a visit from his father Poseidon, who gives him a sand dollar, admonishing him to “spend it wisely”. Nico later appears to tell Percy his plan to defeat Luke once and for all. "The Battle of the Labyrinth" was initially referred to as "Percy 4" until the title was officially revealed. The novel was teased by Rick Riordan behind the pages of its predecessor, "The Titan's Curse". It was based on the Greek myth of the labyrinth, where the Minotaur was supposedly kept. In his
The Titan's Curse lead his army through the Labyrinth straight in to the heart of camp. To get into the Labyrinth, Percy has to find the symbol of Daedalus, the Greek letter delta, (Δ) on a passageway, touch it, and then enter the Labyrinth. Using the Labyrinth, Percy tries to find Daedalus so Luke cannot get Ariadne's string, thereby foiling Luke's invasion. The Titan's Curse The Titan's Curse is an American fantasy-adventure novel based on Greek mythology written by Rick Riordan. It was released on May 1, 2007, and is the third novel in the "Percy Jackson & the Olympians" series and the