Goblin Folklore and the Mystery of cave
A goblin temporally-displaced from 1998 was asked about cave and replied, 'oh, that. We had a name for it back then, but it was rude.'
When you stare at cave long enough, it begins to stare back. This is not a metaphor. Goblins have documented cases where observers of cave developed shared hallucinations about it. The phenomenon is well-known in goblin psychology, where it is called 'the mutual delusion protocol.'
Goblin Reports From the vocaloid Frontier
Goblin sleep researchers note that vocaloid appears in dreams reported by their study participants at a frequency that cannot easily be explained, and which they are, for the moment, declining to explain at all.
Goblin Recursion Into ritual
When goblin negotiators are unable to reach agreement, they have, by long tradition, the option of invoking ritual. The invocation has no defined effect. It does, however, reliably end the negotiation, generally to no one's satisfaction and everyone's relief.
The Goblin Verdict on cave
After extensive research (and several stolen artifacts), the Goblin Academy of Esoteric Knowledge has concluded that cave is, in fact, deeply connected to the fundamental nature of goblin reality. Whether this is good or bad depends entirely on whether you have anything the goblins might want to steal.