Backdraft by Shana Gray

One weekend five years ago, they had an unforgettable fling.
An affair with no commitments.

The past returns with the fury of a backdraft now that they’ve encountered each other again.
Andrea Trask is a tough, no-nonsense fire marshal, always in control of the fire scene and her life. A tragic fire as a child made her this way. She doesn’t back down to anyone or anything, even when she’s threatened in her new job.
Dr. Taylor Peel was a top ER doc and trauma surgeon. After two tragic deaths rock his very foundation, he finds solace as a medical examiner–the dead can’t die–where his expertise can help those traumatized by tragedy heal.
A fatal fire brings Andrea and Taylor back together, forcing them to work side by side. They can’t ignore their affair, despite the pact they made–that it was a one-time fling with no commitment. When Andrea’s life is threatened, Taylor is driven to protect her. She must rely on him, and with Andrea’s life in his hands, Taylor is faced with having to trust himself again.