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
Labyrinth expedition. There are also stone labyrinths on the Isles of Scilly, although none is known to date from before the nineteenth century. There are examples of labyrinths in many disparate cultures. The symbol has appeared in various forms and media (petroglyphs, classic-form, medieval-form, pavement, turf, and basketry) at some time throughout most parts of the world, from Native North and South America to Australia, Java, India, and Nepal. In recent years, there has been a resurgence of interest in labyrinths and a revival in labyrinth building, of both unicursal and multicursal patterns. In modern imagery, the labyrinth of Daedalus is