The Twilight Circus (Wolven)

Having spent the summer dodging mutant werewolves and barking-mad scientists, Nat Carver and Woody, his shape-shifting friend, have joined the Twilight Circus of Illusion before going in search of Woody's long-lost clan. But instead the boys are caught up in a thrilling new adventure, this time against the forces of evil in the guise of a black widow vampire and her terrifying hive.