Shadows in the Water — Kory M. Shrum

Louie Thorne was born with a dangerous gift and a reason to fear the darkness. But when her parents are murdered by the mafia, embracing her power is the only way to exact her revenge. She will destroy the men who destroyed her family -- no matter the cost.

Robert King may be a retired agent, but he knows trouble when he sees it. First, his old partner returns with a case. Then an old flame begs a favor. By the time Louie enters the picture, King will be lucky to survive the night.