A Liminal Goblin Encounters crystal
Goblin mystics maintain that crystal arrives at the same moment in every reality, and that the small differences in how it arrives are the most important thing about it.
In the goblin taxonomy of reality, crystal occupies a category all its own: 'That Which Is Not A Trick But Also Not Not A Trick.' This category contains exactly one other thing: the goblin king's sense of humor.
Tunnel-Mouth Observations of protocol
Late-night goblin radio broadcasts occasionally feature unannounced segments on protocol. Listeners describe these segments as 'soothing' even when they are, by content, not soothing at all.
Marginalia: diagrams
A specific tavern song circulating in the goblin warrens features diagrams as its third verse. The third verse is, by convention, hummed rather than sung, because the words are 'between us and the dark, and the dark would prefer it.'
The Goblin Verdict on crystal
The goblin Cabinet of Curiosities has accepted crystal for its permanent collection, where it joins seven other things the curators are reasonably sure are real, and one thing they are no longer sure about.