Trapped in an icy nightmare, the Donner party battles the relentless snow, yet the chilling threat extends beyond the biting cold. As members vanish one by one, Emily Cross makes the dangerous decision to leave the group.
But they aren't alone in the mountains. Something lurks in the darkness, and it wants blood.
Will Emily make it down the mountain alive, or will she discover firsthand the horrors of the Crimson Hunger?