Captive Witch by Fiona Starr

DELLA
I fell for Victor Montalban the night I was hired to kill him. When I let him go, he walked away with my reputation, my family’s trust, and my heart. Now he’s here in front of me once more, his eyes angry and mistrustful. What he doesn’t know is that he’s in danger, and this time I’m here to save his life. I have to make him believe me… just for tonight—that will be long enough to ensure that he lives. I thought I would die when I let him go before, and now all I want is to see him walk away again.

VICTOR
The light went out of my life the night Della Thoreaux decided to let me live. She’s a deadly assassin in addition to being a powerful witch, and yet, somehow I survived. She left me with a scar on my neck, a target on my back, and a chain around my heart. She fooled me once and it nearly cost me everything. Now she’s back, trying to convince me she’s the only one I can trust. Do I listen to my heart and put my life in the hands of the woman who tried to kill me?