The Darkest Assassin by Gena Showalter — book slip

Fox is a demon-possessed immortal with a unique set of skills, including the ability to open portals and eliminate the most dangerous Sent Ones.

However, her life takes a turn when she becomes the target of a winged assassin named Bjorn, who seeks vengeance for the males she accidentally killed.

Despite the danger, an undeniable attraction simmers between them, complicating their deadly game of cat and mouse.

Bjorn, a fierce warrior with a tragic past, is bound to a wife who drains his life force. Yet, his desire for Fox grows stronger, threatening his iron control. As fate conspires against them, they must navigate old and new enemies while grappling with their feelings for each other. Can they survive and learn to love amidst the chaos?