Free for today
Wanderers: Ragnarök by Richard A Bamberg
http://www.amazon.com/gp/product/B00CCTUPUW
Book details:
Alone and friendless, the Wanderers, servants of Fate, maintain the balance between the supernatural world and mankind’s. For millennia the Wanderers protected that balance-but now a renegade Wanderer arises to open the doors between the Earth and our greatest nightmares. Years ago, Fate scavenged Rafe from the battlefields of Vietnam, handing him over to a mentor he barely knew before the rogue Wanderer slaughtered him. Skilled but only half-trained, Rafe tracks down a warning from a naiad in Alabama only to find a coven of witches probing deeper into dark magics than they ever intended. Rafe must stop the witches from destroying the already-fragile balance...but can he do it before the lovely young witch helping Rafe gets sacrificed for the greater good?