Filthy Reject by Liza Street

Rejected by her mate, she’s sworn off men. But her love is this leopard shifter’s only chance to save his soul.

On the run from her abusive pack, wolf shifter Melody needs sanctuary. A shifter prison full of misfits seems like the perfect place to hide. Only mated shifters can escape the prison, but Melody has sworn off love after being rejected by her fated mate. She’d rather be trapped forever by the prison’s magic than assassinated by her pack.
Time is running out before leopard shifter Ronan’s thirtieth birthday, the deadline to break a witch’s curse. If he doesn’t find his mate by then, he’ll lose himself and go feral. He can’t waste precious hours by messing around with someone else’s reject. But something about Melody calls to his inner leopard. He can’t stay away from her, even when it means risking his soul.