Gabriel's Angel - Nora Roberts

Pregnant, alone and on the run to protect her unborn child, Laura Malone found herself stranded on a snowy Colorado road, at the mercy of a stranger. Fortunately, Gabriel Bradley's only intention that fateful night was to provide her shelter.

She was an angel with midnight blue eyes and a shock of blond hair, and Gabe might have thought she had come out of the snowy night to save him -- if he were the kind of man to believe in such things. But ever since he had lost his beloved brother, he had lost hope. Now the only solace Gabe took was in his solitude.