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
Banyoles monster Banyoles monster The Banyoles monster is a legendary monster, possibly a dragon, from the Lake of Banyoles in Catalonia, Spain. According to the legend, the Banyoles monster lives in the Banyoles Lake in Girona of northern eastern Spain hundreds years of ago. In the eighth century, a French monk named St. Emeterio coaxed the beast from the lake using prayers and transformed the creature into a peaceful herbivore. It is said the Banyoles Monster still lives in the depth of the lake today. The monster is the subject of a 2008 children's song "El Monstre De Banyoles" by Toni Jiménez.