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
Ariadne (poem) lover as brave and fair and true!" Pasiphaë smiles darkly, having already divined the attraction between Theseus and Ariadne. In her chamber that night Ariadne thinks about Theseus – and about the sort of husband her father is likely to choose for her. Her brilliant little sister Phaedra, who witnessed events in court and who is also smitten by Theseus, urges her to seek help from Daedalus, who built the Labyrinth. Daedalus, a Greek exile, has long loved Ariadne in silence, this fair-haired daughter of Minos by a Thracian captive-woman of royal blood. In the small hours Ariadne calls on