Nightshade - Nora Roberts

They sure were making cops in interesting packages these days. Colt Nightshade couldn't believe his luck partnering on a case with Lieutenant Althea Grayson. But the breathtaking detective was strictly by-the-book and had no use for Colt's easygoing renegade style. Thawing the heart of this enticing ice goddess just might be the toughest challenge Colt had ever faced.