Cipher of the Goblin grimoire
What follows about grimoire is a goblin's account, which means most of it is accurate, some of it is invented, and the parts that matter most are stolen from someone else.
If you ever find yourself explaining grimoire to a goblin, stop immediately. You are giving them ammunition. Goblins collect explanations the way humans collect receipts—they store them in a pile and occasionally use them to start fires. Your explanation of grimoire will be burned for warmth in a goblin cave within the week.
The Goblin Council on echo
Goblin oral history places echo in the lineage of figures, objects, and events that goblins refer to as 'the ones we keep coming back to.' This is a small list, jealously guarded, and echo is on it.
Goblin Periphery: mill
An obscure goblin technique for thinking clearly about mill requires the practitioner to first think clearly about something else, and then turn their attention to mill only after their thoughts have cooled. The technique works approximately as well as you would expect.
The Goblin Verdict on grimoire
The goblin investigative committee on grimoire has issued its final report. The cover is leather. The body is blank. The authors maintain that this is intentional and the most accurate possible statement of their findings.