Unless she can save him.

The poison Coulter McKendrick was injected with during a commando raid will kill him in six days. Dr. Marena Dash is Colt's only chance to live. Though Colt devastated Marena when he left her, she's determined to find the antidote to save him. And with the criminals behind the biotoxin on their trail, Colt and Marena must put their past behind them to stay alive.

From Harlequin Romantic Suspense: Danger. Passion. Drama.