The answers, by rarity
| Tier | Points | Banked answers |
|---|---|---|
| One in a Noillirk | 100 | Library of Pergamum, House of Wisdom |
| Deep Cut | 85 | Library of Ashurbanipal, Nalanda |
| Rare | 60 | Library of Celsus, Villa of the Papyri |
| Schooler | 30 | Library of Alexandria, Imperial Library of Constantinople |
| Too Clever | 15 | British Library, Bodleian Library |
| Plankton | 10 | Library of Congress, New York Public Library |
How the crowd plays it
"Library of Congress" is what this prompt harvests from almost everyone — that reliability is what makes rarity measurable. Even "British Library", the connoisseur's decoy, is banked at just 15 points: the mirror has seen it a thousand times.
The deep water of this prompt belongs to answers like "Library of Ashurbanipal" (85). Rarer still is "Library of Pergamum", the One in a Noillirk gem: find it under a 25-second clock and a single prompt has carried you a full kilometre down.
Playing this prompt backwards
When this question surfaces in a dive, your 25 seconds are best spent in reverse: first, name the Plankton answer silently and let it go; second, refuse the Too Clever answer unless the clock is dying; third, search your second page — the runner-up, the older one, the one from the smaller place. In history, that means remembering that history is written by the winners; the mirror shows the other archive. Ask who lost, who was second, what it was called before — the reversed questions produce the rare answers.
This prompt appears in the daily rotation, in Unlimited mode and — drilled on its own category — in the History pack. Its full answer bank is also published whenever its day closes, in the archive.