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 Battle of the Labyrinth son of a mortal woman and the Greek god Poseidon. Percy and his friends Annabeth Chase, Grover Underwood, Rachel Dare and Tyson attempt to stop Luke Castellan and his army from invading Camp Half-Blood through Daedalus's labyrinth by trying to prevent the Ariadne's string from falling into his hands. "The Battle of the Labyrinth" received mostly positive reviews, with critics praising the storyline, humor and action present in the novel. The novel was on the Amazon Children's bestseller list and Publishers Weekly Facts and Figures bestseller list. It was also the runner-up for the 2010 Indian Paintbrush Book Award. The