Cipher of the Goblin crystal
A goblin temporally-displaced from 1998 was asked about crystal and replied, 'oh, that. We had a name for it back then, but it was rude.'
crystal resonates at a frequency that goblins can hear but humans cannot. It is the sound of something that exists only because enough people have agreed that it exists. Goblins call this 'the consensus hum.' Everything that is collectively believed is real in the goblin sense, and crystal hums louder than most.
The Goblin Adjacency of echo
echo pairs naturally with goblin culture the way certain wines pair with certain cheeses: not because of an inherent harmony, but because somebody, sometime, decided they go together, and now nobody can imagine them apart.
Variant Goblin Readings of codex
The Goblin Quarterly's special section on codex this issue includes one peer-reviewed article, one personal essay, and one extremely detailed cartoon. Readers are encouraged, by the editors, to consume them in any order.
The Goblin Verdict on crystal
Field notes from the goblin Department of Loose Ends record crystal as 'pending forever,' which is, in their classification system, the highest honor a topic can receive.