"Maximillian Fly, a roach-human hybrid, helps two young humans escape from the Bartizan's eye, only to find himself a key player in a deadly war between roaches and humans"--
Jason, Piper, and Leo, three students from a school for "bad kids," find themselves at Camp Half-Blood, where they learn that they are demigods and begin a quest to free Hera, who has been imprisoned by Mother Earth herself.