The Cover of Night by Linda Howard
In a picturesque small town, young widow and mother, Cate Nightingale owns and operates a struggling guest house. Occasionally, she enlists the aid of a mysterious, strong, and enigmatic handyman, Calvin Harris. When a trio of brutal thugs invade her inn, demanding the possessions of a guest who vanished days before, Cal proves much bolder than Cate would have ever expected. Though Calvin manages to disperse the intruders, the men regroup and shut down phone access to the entire village, holding its citizens hostage. In a desperate bid for survival, Cate and Cal strike out on their own, seeking help from a neighbouring town. As their daring journey unfolds, Cate is astonished to witness Cal's evolution from reticent carpenter to fearless protector. Is there more to her mysterious handyman than meet the eye?