Midnight Assassin Series by Susan Harris

In a changed world, Cassie Murphy has learned to adapt and use her pain to become the most skilled killer the supernatural world has seen. Trained by the ruthless keeper of the city of Cork, Luka, she struggles against the very thing she has become and the vampire she has lost her heart to. But destiny has other plans for her and when her past catches up with her, Cassie will learn secrets that could tear her world to shreds and pull her and Luka further apart... moreIn a changed world, Cassie Murphy has learned to adapt and use her pain to become the most skilled killer the supernatural world has seen. Trained by the ruthless keeper of the city of Cork, Luka, she struggles against the very thing she has become and the vampire she has lost her heart to. But destiny has other plans for her and when her past catches up with her, Cassie will learn secrets that could tear her world to shreds and pull her and Luka further apart. Cassie will find out that there is most certainly Another way to Bleed less