In Loving Darkness (Cryptid Keeper Series, #2)

Alysa Campbell knows exactly how this ends. She has seen it once already; her mother, worn to nothing by the Banshee's unrelenting pull, the wail of death living inside her until there was no room left for anything else. Alysa was the one who found her. She was the one who watched the Banshee try to tear itself free.

She swore she would not become that. She built a life in isolation to make sure of it. No connections, no warmth, nothing the Banshee could use to drag her toward the same end. ...