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
Daedalus have a touch of the divine in them." It is said he first conceived masts and sails for ships for the navy of Minos. He is said to have carved statues so well they looked as if alive; even possessing self-motion. They would have escaped if not for the chain that bound them to the wall. Daedalus gave his name, eponymously, to any Greek artificer and to many Greek contraptions that represented dextrous skill. At Plataea there was a festival, the Daedala, in which a temporary wooden altar was fashioned, and an effigy was made from an oak-tree and dressed