Nine Lives — Kiki Swinson

Wild-card Aiden. Dead-shot Ava. Efficient, fast, and brutal, this notorious brother-sister hit team grew up abused, unwanted--and in lethal tune with each other. Killing nine targets in ten days will be their biggest score yet. But as Ava sets up their final target, she falls hard for him and a chance at a normal life. And that's a betrayal she may not live to regret...