The Atlas·The Floor·Driftophaga vigilans

Plate XXI · Driftophaga vigilans

Driftophaga vigilans

the drift-eater

class
nightscour
rarity
uncommon
size
a scant 1 cm
diet
whatever no longer matches its source
active
ever-waking
signature
rust on ash
Relations · Driftophaga vigilans
fearspreyed on bypreys on Driftophaga vigilans Clathrina vigil Clathrina vigil Formica textrix
  • fearsClathrina vigil — it will cross the whole floor by the longest way rather than present itself at the gate.
  • preyed on byClathrina vigil — even the drift-eater is weighed at the narrow place, and has more than once been found wanting.
  • preys onFormica textrix — it takes only the weavers that have fallen out of step with their column; the column does not appear to miss them.

We cannot tell you where the drift-eater lives. We can only tell you where it turns up, which is wherever two copies of a thing no longer agree — a cached seed-hoard and the memory of it in a second hoard; a shed skin lying beside its owner; a leaf and the print that leaf has left in the mud. Let any pair of the kind fall out of step, and by the next watch there will be a small rust-backed scavenger standing in the gap between them, feeding.

Its manner of feeding is particular. While the pair agree it takes no interest in either — we have set out matched fragments by the dozen and it walked over them as over gravel. It eats only the difference: the strayed whorl, the miscounted seed, the margin that has curled away from its likeness. It does not sleep, so far as we can determine; drift, presumably, does not either. What changes with the season is not the animal but the world's supply of disagreement, on which it wholly depends.

We have set the year down as the drift-eater keeps it, by that supply and not by our calendar: the slow straying, the reckoning, and the lean agreement. Turn the almanac to move through them; the seasons on the rim only say where in our shared year each of the drift-eater's falls.

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 timethe slow straying — the growing months put every copy of everything a little out of step; it feeds at leisure and is met with everywhere.the reckoning — the holiday's lapses and the great cleaning between them furnish the year's richest disagreements, taken one difference at a time.the lean agreement — the cold holds the floor still; where nothing changes, nothing strays, and it goes hungry and unseen.
the slow strayingd. 110–236

The lengthening light begins, by small increments, to set one copy of a thing a little ahead of its neighbour — a seedling that greens before its twin, a shadow that has shifted since it was last marked — and with the lid open and the draught working the growing months begin in earnest, and so does the straying. Every copy of everything goes a little out of step with its source, and the drift-eater is once more met with wherever one looks for it; it feeds at leisure now, no longer fasting, taking the small new disagreements one at a time. This is its easy stretch: the growing at its height, every likeness quietly parting from its like, and the animal at leisure among the results. One night we pressed a fern frond and laid the pressed copy beside the living one, in the interests of science; by morning the drift-eater had been and gone. The pressed frond was eaten precisely at the pinnae that had dried crooked, and nowhere else; the living frond was untouched. It had, in effect, corrected our specimen, and we have not entirely forgiven it. The ledger notes a plainer instance:

found where two counts of the same seed-hoard did not agree; by morning they did.

the ledger5 June 2026at night
the reckoningd. 236–322

The keeper's holiday lets the misting lapse, and a lapsed routine is a great manufacturer of disagreement — a hoard recounted and not matching, a mark made and not kept. The reckoning begins here, the richest feeding of the year.

found at a hoard recounted twice and matching neither count; by the second visit only one difference remained.

the ledger28 September 2026at dawn

And after the great cleaning, when everything is put back an inch from where it stood and no two records of the floor agree for a fortnight, the drift-eater comes into its fullest table. It goes patiently down the year's accumulated strayings, eating each difference until the pair it stood between agree again — though seldom, we have noticed, in the way their owner would have chosen, and it takes the whole of it as it takes everything, one difference at a time and without haste.

the lean agreementd. 322–110

Then the cold holds the whole floor still, and a still floor is a floor in agreement with itself. Where nothing changes, nothing strays; and where nothing strays, the drift-eater has nothing to eat. We do not see it in these weeks — it goes hungry and unseen, we assume, wherever it keeps, against the first disagreement of the spring. The lean holds a while into the lengthening light, the animal still scarce and still hungry; but the year's first thin differences are already being laid down for it, and it knows, as we do not, exactly where. Since keeping this creature's company we have taken to holding our own field notes in a single copy, and we sleep the better for it.

Recent sightings
  • 2026-09-28dawnDriftophaga vigilans — found at a hoard recounted twice and matching neither count; by the second visit only one difference remained.
  • 2026-06-05nightDriftophaga vigilans — found where two counts of the same seed-hoard did not agree; by morning they did.