Dark Frontiers

In 1865, the frontier was a dark and foreboding place. For settlers and pioneers, there was danger at every turn. It took a special breed to tame this land and face the threats that lurked just outside the firelight. To help with this task, the US Marshals dispatched Declan Caine and his Nightmare Hunters to hunt the most hazardous creatures that stalked the land. Creatures that most people refuse to believe exist.
A series of grizzly deaths near the small settlement of Fair Grove come to the attention of the Marshals. Declan soon learns that more of the strange Oolonga-Doglalla creatures have established hunting grounds near the village, killing local farmers and residents alike. Before he can investigate further, more enemies from his past come back to haunt him. The mystery deepens when the enigmatic Father Caldera visits him.
The trail leads them to the small town of Fair Grove, where they find more than they bargained for. Declan deals with the demons of his past, and this fateful encounter will forever change the destiny of the Nightmare Hunters. A far greater adversary than any of them have ever experienced is now hunting them.
Can Declan and his band of warriors defeat this enemy, or will they fall victim to its evil? Will they defeat this nigh insurmountable threat while facing betrayal from within? New allies and old enemies await them at every turn, yet nothing has prepared them for what awaits. Blood and death lie at every turn of the trail and will take them from the farms of Fair Grove to the Mighty Missouri River. Mere survival isn't enough. The fate of humanity lies in the balance.