Rancher Dunne Thompson spent his adult life trying to atone for his serial killer grandfather. When his friend's mysterious twin, Quinn Peterson, offers her help with his latest obsession--tracking down a copycat killer--it's a nonstarter. But Quinn's quick, unorthodox mind catches patterns Dunne hasn't seen. As attraction and danger collide, the clues lead to a suspect more surprising than Quinn herself...

From Harlequin Intrigue: Seek thrills. Solve crimes. Justice served.

Discover more action-packed stories in the Covert Cowboy Soldiers series. All books are stand-alone with uplifting endings but were published in the following order:

Book 1: The Lost Hart Triplet
Book 2: Small Town Vanishing
Book 3: One Night Standoff
Book 4: Shot in the Dark
Book 5: Casing the Copycat
Book 6: Clandestine Baby