In award-winning and bestselling author Nevada Barr's next mystery, a raging forest fire in California's Lassen Volcanic National Park traps exhausted firefighters, including Ranger Anna Pigeon, in its midst. But the danger doesn't end there. After the flames subside, Anna uncovers a chilling truth--two members of their group have been brutally killed. As a relentless winter storm descends, cutting them off from the outside world, Anna...