Cold Dawn — Susan Sleeman

An inferno meant to destroy…

Blackwell Tactical operator and former criminalist Samantha Willis discovers forensic evidence to prove her friend has been murdered. But before she can gather the evidence, an explosion erupts and a fiery inferno traps her in a building. She helplessly watches the evidence go up in flames and prays that she can escape before the encroaching flames take her life.

Or an act of revenge…

Firefighter and former Navy SEAL Matt Griffin knew his friend's death was no accident, and he arrives at the building to gather his own evidence. But he sees the building engulfed in flames and discovers a familiar car parked in the lot. Sam, his former girlfriend, had to be trapped inside. Despite his training, despite his captain's protest, Griff takes off without a threat assessment, risking his life to enter the building and drag Sam to safety. When he does, he can't help but wonder if the fire was set to destroy evidence or if it was set to kill Sam. Either way, if Sam survives, he vows to hunt down the answer.