Ashford's Ashes

The blood was still wet when Colton Ashford realized two things: his father had been murdered, and the only person he could trust to help him find out why was the one woman his family had every reason to hate.
Colton spent eight years rebuilding an empire from the wreckage Victor Caldwell left behind. Now Victor's daughter is his arranged fiancée, a merger of old money dressed up as romance, and Colton agreed to the engagement for exactly one reason: to get close enough to the man who destroyed his family to finally make him pay.
Wren Caldwell never wanted this life. She escaped to New York the first chance she got, and she's spent every dinner, every gala, every forced public appearance since her return counting the days until she can leave again. She doesn't trust the cold, guarded man she's supposed to marry. She has no idea her own father is the reason his family fell apart.
When Richard Ashford is found shot dead in his study, Colton and Wren strike a secret pact: maintain the public facade, work the investigation together, and find out who really pulled the trigger. What neither of them expects is to fall in love doing it, or to discover that the deeper they dig, the more the evidence points somewhere neither of them wants to look.