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 (band) and Extrema. The works on the second album "The Never Ending Illusion" were completed in 2008. Roland Grapow (Helloween, Masterplan) made the mixing, while Mark Wilkinson (who worked among the others for Marillion, Iron Maiden and Judas Priest) drew the artwork. The album, featuring Roberto Tiranti (Labyrinth) and Alessandro Corvaglia as guests, was published by the Swiss label Galileo Records in January 2009. Good reviews were published about it on several musical magazines ("Metal Hammer", "Rock Hard" and "Metal Maniac") and webzines. On November 7, 2009 Daedalus played live at Z7 in Pratteln (Basel) during the festival organized by Galileo