Heat of the Moment (Silhouette Intimate Moments, #1434)
Diana Duncan

With the help of his devoted K-9, Murphy, Liam vows to protect Kate from the bomber hunting her--while fighting the passion that had never died out. But Liam and Murphy have only twenty-four hair-raising hours to accomplish their most difficult mission: defuse Kate's mistrust and win her heart.
Before their time runs out.