Nightmare Fuel / The Girl Who Loved Tom Gordon

• Pretty much the whole plot, involving a small girl lost in the woods for several days with little food, slowly losing her mind, and being pursued by something, later ambiguously revealed to be a bear, but especially this little gem:
  "As she slept, something came and watched her. It watched for a long time. It was not until light began to line the horizon in the east that it went away ... and it did not go far."