Knocking on Heaven's Door: The Death Chronicles, Book 3 (Unabridged‪)‬

As a senior in high school, Nick Ramsay should be focusing on his college choices; but instead, he's dealing with a tear between his world and Purgatory. Leviathan and a dozen demons are running amok in central Florida,and Nick must herd them back into the underworld before Heaven opens its gates and sends down a pack of angry angels to clean up the mess.