Flaming Crimes (Disaster Crimes #4)
Chrys Fey

Donovan escapes what could've been a deadly wreck. Their past enemies have been eliminated, so who is cutting brake lines and leaving bloody messages? He vows to find out, for the sake of the woman he loves and the life they're trying to build.
Amidst a criminal mind game, a fire ignites next to their home. They battle the flames and fight to keep their house safe from the blaze pressing in on all sides, but neither of them expects to confront a psychotic adversary in the middle of the inferno.
Their lives may just go up in flames…