Wing III · cool, glassy

The Pool

Of the three wings of this guide, the pool asks the most patience and repays it most quietly. It is the cool corner of the world under glass — a standing water that does not so much reflect the light as detain it, bending every lamp and every observer into gentle strangers. Nothing here hurries. We have learned to arrive early, sit low, and let the water forget us before we begin to count.

What lives here lives slowly, and mostly at the edges of the day. A shell crosses the pane at the pace of an honest argument; a small gold light burns at middle depth as though it had been dropped there and declined to go out. Some inhabitants we know well enough to greet. One we know only by its voice, and the voice is not its own. The reader is asked to take our records in the spirit they were made: cold hands, low light, and every confidence honestly earned.

The catalogue

The dots before each name are its colour signature; those after it, its rarity, read against the scale on rarity below.

The food web
mimicsmimicsfearspreys onfearsshelters Echo cantans Geminella sequax Luciola mersa Nocturna brevis Vitrea placida
The wing's year

Turn the needle (drag it, or focus it: arrow keys move a day, Page Up and Page Down a season) to a season of the Glass Year — the calendar the whole terrarium shares — and the roster names who this wing would find abroad in it. Each creature's own phases are read on its page.

the Radiator Months — the pipes come on below; the air runs dry-warm and the pool gives up an inchthe Lamp's Lengthening — the keepers let the light run longer by small, deniable incrementsthe Great Airing — the lid stands open an hour a day; opinions on the draught differthe Long Damp — the misting at its most liberal; the glass never quite dries, and neither do wethe Small Dry — a lapse in the misting each year, coinciding, we note, with the keeper's holidaythe Settling — after the great cleaning everything re-arranges itself, an inch at a time

In the Settling

Keeping quiet: Echo cantans, Geminella sequax

Field log
  • 2026-10-19duskripples crossing the whole pane in an order none of us set; the surface settles, then thinks better of it, then settles.
  • 2026-10-11dawnthe water clear to the bottom for the first time since the cleaning, and every mote in it counted twice and agreeing.
  • 2026-09-18nightLuciola mersa — the outlying lights gone from the shallows; what still burns now keeps to the deepest water and the latest hour.
  • 2026-09-13duskNocturna brevis — the circuit flown a shade faster than midsummer's, the stations fewer but every one of them kept.
  • 2026-09-08dawnGeminella sequax — two pairs crowded onto the last surviving ribbon of film, no wider than a hand, and made no move to disperse and hunt it singly.
  • 2026-09-03nightanother ripple crossed the middle of the pool, same spot as before, and this time we had the wit to mark the hour — full dark, no moon.
  • 2026-08-29noonVitrea placida — crossed the pane again today, alone, no wager laid; we watched the whole slow crossing anyway.
  • 2026-08-19nightEcho cantans — a call answered from the far water before the junior observer had made any sound at all this time; she has not commented, and neither have we.

The 8 most recent of 24 sightings; the ledger keeps the earlier ones.

Daily choreography
On rarity
  • abundantunderfoot, daily
  • commonseen most visits
  • uncommonworth a note
  • rareworth a plate
  • mythicreported, never twice by the same observer