These Nameless Things

Before Dan opened his door to find a wounded woman who had escaped from the tormentors in the mountain, his life had become rather quiet. He and the eight other people in the mostly abandoned town had become friends. They spent peaceful evenings around the campfire and even made vague plans to journey east one day and leave the ominous mountain behind.

But the woman's arrival changes everything.
Who is she? How does she know so much about Dan's brother, who is still held captive in the mount...