Walker by Bree Livingston

She’s marked for death. He’s the shield keeping her alive.

Witnessing a murder has turned Kaitlyn Robert’s life upside down. She’s in the crosshairs of a notorious drug dealer, and witness protection has failed to keep her safe. Now, gorgeous Walker Wells has stepped in like a superhero to make sure she makes it to the trial alive.
Assigned to keep Kait safe until she testifies in three months, Walker Wells, a member of Guardian Group Security Firm, devises a plan to lie low in a small, secluded cabin nestled in the unforgiving Alaskan wilderness. As winter’s harsh grip tightens and the looming danger around Kait intensifies, the mission becomes challenging. The task proves even more difficult when sparks fly and Walker’s attraction to Kait grows.

As they spend time together, professional lines blur. Will Walker let the past destroy any future he could have with Kait or will they find something neither thought they’d ever find—a lasting love?