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 underneath the big top the boys meet a brand-new batty batch of evil: a black widow vampire and her horrifying hive! Will they escape her sticky web so that they can search for the noble Wolven? And now that Nat has Wolven blood, too, how -- when?! -- is HE about to change? The second book in Di Toft's fast-paced, funny series about a boy and his pet werewolf!