Wren Calloway has worn a silver collar since she was six. It keeps her wolf asleep, it burns if she runs, and it marks her as what the pack calls unclean — half wolf, half something nobody will name. She serves wine in the great house. Her little sister June scrubs pots in the back. Wren has never begged for anything in her life, and she doesn't plan to start.Then she turns twenty-two in the middle of Alpha Kade Whitlock's engagement feast, and the mate bond opens in front of three hundred wolves.Kade takes her collar off with his bare hands, burns his palms doing it — and rejects her at dawn anyway.She accepts. It should have ended there. Instead the bond gets louder, her back splits open, and the mark that comes in isn't one crescent. It's two, crossed.There's a second heartbeat on the other end of her bond, and it belongs to the brother Kade buried six years ago.A forked bond can't hold three. Every full moon it pulls life from all three of them, trying to close itself, and no woman caught in one has ever survived a season. The pack's answer is a stone pit with iron rings in the walls. The elders give her four nights.What Wren doesn't know is that the fork wasn't an accident. Thirty-one years ago the old Alpha paid a price no father should pay, and split one soul across two sons — and everything after that, from the collar on her throat to the dead brother walking out of the trees, has been the world trying to put that soul back together.One brother has to die before the bond closes.Both of them are waiting for her to pick.