In the Shadow of the Mountain by Reed Alexander
The quiet town of Kodiak Lake is great place for snowmobiling and ice fishing. It's a picturesque Adirondack village that's a destination location for a select type of winter lover. But something is wrong in the Adirondack mountains. Some people have begun acting oddly, and others are terrified. What stalks the winter wonderland seeking refuge inside the residents of this sleepy town, and what is watching from the shadows with far too many eyes?