When wolf shifter Lucas comes across an unconscious human left for dead in the snowy wilderness, he knows exactly what he should do. But he defies the ancient Laws that govern his People and brings her home to heal. Unfortunately, members of his former pack show up before she even regains consciousness— and they bring dire news. His sister is missing.

Now, with his sister gone and the ruthless Alpha Marten hunting her, Lucas is forced to take up the mantle of Alpha himself. He must protect the fragile human beneath his roof, unite a fledgling pack, and prepare for the darkness gathering around them.

But when a second human stumbles upon their secret, Lucas faces a brutal truth. Unless someone in the pack claims her, he will be bound by Law to eliminate the threat himself.