One girl. Four Alphas. A bond that was never supposed to break. At nineteen, Calla Stone is the Black Mountain Pack's greatest embarrassment. Shiftless, orphaned, and serving drinks to the elite, she's spent her life blending into the background. But when the fated mate bond finally snaps into place, it doesn't link her to one man-it links her to the Quad: the four ruthless, powerful heirs destined to lead the pack.

Their reaction isn't a celebration. It's a massacre. Publicly rejected and humiliated, Calla is cast aside like trash. The Alphas think they've ended her story. They think she's a weak link they've successfully purged. But as Calla flees into the dark, the rejection doesn't just break her-it triggers a shift that shouldn't be possible. She isn't the runt they imagined. She's something older, bigger, and far more dangerous. The hunt has begun, and this time, the Alphas are the prey.