Blood Snarl

Man had always been the most deadly predator on Earth. Until now.
They were big- very big. Their slanting green eyes seemed to glow even in the daylight. Huge teeth gleamed white in the pale winter sun. They were creatures out of a folk nightmare, and they were coming from the norther wilderness in the midst of the most savage winter in centuries.
They were led by a giant killer creature, unlike any other great gray wolf that man had faced in the age-old struggle for supremacy on the planet.
The first victims of the slashing fangs were the domestic animals. Next were the children, who gave the wolves a taste for human flesh.
Now as the hungry howling and the gnawing horror spread over the land, no one was safe - and no way was in sight to stop the slaughter. . .