In a town named Oppum Oppidulum, a twelve year old boy by the name of Rex Grammaticus is the son of a famous engineer and inventor. His father is pronounced a lunatic by his evil step mother and taken to a high security asylum in the middle of a freezing lake. This lake is rumored to be the home of a giant sea monster and diamonds are believed to be at the bottom of the lake. Soon after the story gets going, there is a jail-break and the head warden of the asylum is replaced by a mind doctor, who uses hypnotism in crooked ways.
Nick is a poor fourteen year old boy who has incredible powers that he can not yet control. He survived the zombies and getting shot by a gun, apparently in the previous book. Oh yeah, it appears he also played a big roll in getting his mom fired from her job! However, soon enough, his mom got a new job working at a hang-out place named The Sanctuary, where we soon find out a bunch of shape-shifters work there, also. Nick wakes to find out that he's been surrounded by demons and many more than he thought at first.