Elena Cross is the youngest and deadliest werewolf hunter alive. At twenty-two, she has fifty confirmed kills. Her father raised her to be a weapon. Her husband tells her he loves her every night. She believes she is human. She believes she is safe.
She is wrong about everything.
When her husband sells her out to the most feared werewolf Alpha in the country to save another woman, Elena's world shatters. The Alpha's bite should kill her. Instead, it wakes up a power inside her that was supposed to be extinct forever. She is a White Wolf. The last of a bloodline her own father destroyed.
But betrayal is only the beginning. When a deadly virus is unleashed into the air, it does not just kill werewolves. It mutates. It spreads to humans. Cities fall. Governments collapse. The world begins to end.
Now Elena is the only person alive whose blood can stop the apocalypse. Hunted by the man who raised her, desired by rival Alphas, and bonded to the Cold Alpha who bit her, she must fight through a dying world to save both humans and werewolves from total extinction.
But the cure demands a sacrifice no mother should ever have to make.