Barry's usual walk through Marshfield Grove with his dog Lucy turns ominous when they find blood and encounter the ghost of Byron Mumford. Byron's been disturbed by zombies in the cemetery, the same zombies Barry and his friends fought a few months ago. While Byron issues his warning, a zombie sneaks up on Barry! Barry and Lucy barely escape. He devises a new plan with the Zombie Hunters to make the undead permanently dead. But can they trust Byron's warning and stop the zombies before they regain their strength? Aligned to Common Core standards and correlated to state standards. Calico is an imprint of Magic Wagon, a division of ABDO.