The Monster of Mystery Valley is the continuing story of Paul and Dana, who travel with family and friends from their ocean home to a remote ranch in Mystery Valley, Montana. In the midst of helping turn the ranch into a Bible camp, they suddenly find themselves caught up in local legends and mysterious happenings.

Was there really gold found in Mystery Valley? Was there really a monster living in the thick forests? What secrets does the old prospector from Buckskin Mountain and his young Indian friends know?