Tower of the Dead (The Dead Series, #1)

Five years after the still unexplained event that altered the world, killing millions, the residents of what is now known as Tower Island, go about their lives with an uneasy, but confident feeling of safety. The zombies, or 'crits' as they have become known, are no longer a danger to the community, thanks to the efforts of Captain Evan Stewart and his troops. But something strange about the dead's recent behavior has him on edge. Though the dead are massing near the gate, they make no effo...