Night of the Werewolf

Night of the Werewolf is the 59th title in the Hardy Boys series of mystery books for children and teens, published under the pseudonym Franklin W. Dixon. It was published by Wanderer Books in 1979 and by Grosset & Dunlap in 2005.

Plot summary
When a ferocious, wolf-life creature appears in the small town of Bayport on the night of a full moon, the Hardy boys are engaged to clear the name of a young man who has a history of werewolves in his family line is suspected. Joe barely escapes a horrible death as the young detectives solve this exciting and hair-raising mystery.