When Nat Carver and his Wolven pal Woody learn that their arch enemy is creating a bad werewolf pack, they know they must stop him. Although it doesn't help that Nat's having problems with his own shape-shifting ability. Digging deep into history the boys have to solve clues and riddles to stop one of the worst monsters ever!

After a summer spent dodging mutant werewolves and mad scientists, Nat Carver and shapeshifter Woody join the Twilight Circus of Illusion and are caught up in a struggle against a black widow vampire and her terrifying hive.