"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!"--p. [4] of cover.

Werewolves, vampires, furry little monsters: It's a three-ring circus of spooky!After dodging mutant werewolves and mad scientists all summer, Nat and Woody have joined the Twilight Circus of Illusion, hoping it might bring them closer to Nat's fugitive dad or, just maybe, any surviving members of Woody's long-lost Wolven clan. But instead they end up in a stinking pile of peril! A pair of strange secret agents is sniffing out their every step, while...