Deadly Sins by Edie James

In the land of eternal night, no sin stays buried.

In the unforgiving landscape of the Canadian Arctic, former black ops pilot Kate Hackett is haunted by the sins of her past. But when a threatening note drags her back into the shadows, she finds an unlikely ally in the charming and enigmatic Fenn Scarborough, the one man she knows she can never fall for.
As Kate and Fenn work together to unravel the clues and unmask the killer, they find themselves drawn to each other, their hearts thawing in the face of shared danger and shared secrets. But even as they grow closer, the ghosts of Kate’s past threaten to tear them apart, and the killer’s net draws ever tighter.
With time running out and nowhere to run, Kate and Fenn must confront the truth about themselves and each other. But in a place where the sun never shines and the ice never melts, will their love be enough to save them both? Or will the frozen depths of the Arctic claim two more lives?