Human: Generate a description of a spooky scene in a forest with a rope leading up to a knothole. Assistant: 
The hollow within the tree is larger than would appear from the outside. It extends upwards where little bits of sky are visible through an open knothole. The walls are smooth, with the exception of the edges around a hole leading outwards at ground level, making it impossible to climb them. Fortunately, some thoughtful traveler left a rope, allowing others to climb up to the knothole.