Ambush Moon — J.R. Roberts

After a hard stretch on the trail, Clint Adams decides to settle down for awhile in Butte City, Colorado, where the mountains are pretty and so are the women...

But this peaceful town has been shaken up by a murderer who strikes during the full moon. And this time the victim is the Gunsmith's new lady-friend. When the townfolk blame an old spiritual ceremony performed by the Ute Indians, he sets out to confront them. What he finds is a steel trap of deceit and intrigue -- and every time it tightens its grip, the Gunsmith finds he's much closer to death!