The Haunted Howl (Key Hunters #3)

Cleo and Evan have a secret. A collection of books so dangerous they are locked up tight. A friend has vanished inside the pages of one of them. It's up to them to find the key that will set her free. THE CURSE OF THE FULL MOON MUST BE BROKEN! On a dark and stormy night, Cleo and Evan are haunted by a disaster. Evan has been bitten by a werewolf! If they can't find the cure -- and the right key -- before the full moon rises, he'll be stuck prowling the pages of this ghost story for good!