Firestorm

A raging fire in California's Lassen Volcanic National Park traps firefighters and Ranger Anna Pigeon. Afterward, Anna discovers two from her group have been killed--one a victim of the flames, the other stabbed to death. Now, as a rampaging winter storm descends, Anna must uncover a murderer.
A raging forest fire in California's Lassen Volcanic National Park traps exhausted firefighters, including Ranger Anna Pigeon, in its midst. Afterward, Anna finds two from her group have been killed. One a victim of the flames. The other, stabbed through the heart. Now, as a rampaging winter storm descends, cutting the survivors off from civilization, Anna must uncover the murderer in their midst.