Moondog

When a young woman disappears during an eclipse party, the townspeople nervously assume a marauding mountain lion has killed her. When her body is found, it bears the marks of an animal attack. But at the next full Moon, when a schoolteacher dies in the same way, fear becomes hysteria - is a vicious serial killer at work?
Local resident and reclusive writer Cyrus "Moondog" Nygerski is struck with a deeper fear and is compelled to discover how the women really died. With Joe Acton, a companion new to the area, he finds details of the killings that do not fit the pattern - and some that fit a more ominous one. And what he comes up with, laid out quite logically and frighteningly, is that there is a werewolf living among the residents of Julian.