A Hiker Must Keep to the Path (or Else) in Horror Short Narrow

A backpack-toting woman trudges through what looks like a sun-baked field of grass, fiddling with a water bottle that's got just a few drops left in it. Things would only seem mildly dire if she hadn't also just passed another woman, sprawled in a heap a few feet off the trail, screaming in agony for help--and with a...