Callidora is an Atlantian noblewoman and member of an elite guard whose purpose is to keep Atlantis pure...until her life is turned upside down by the birth of a son. Phoibos, bullied and taunted by other kids, is sure of one thing: something is wrong with Atlantis. Impure, Atlantian-Human hybrids are ruining his city, and he'll stop at nothing to rectify that. Callidora is the only one who knows the truth of who her only son really is, and how dangerous he can be. Can anyone stop Phoibos before his need for purification brings Atlantis to the very brink of destruction?