Verdigris Lung

The wasting sickness that comes of working sealed, damp, unaired vaults too long — the green patina dust gets in the chest, and first it's a cough, then the shakes, then the mind goes soft. It's a property of the vault, not of what you carry out. Every old salvor has a touch of it, and the worst are past mending.

Old bronze in a wet, shut place grows a green skin — verdigris, the salvors call it, or just the green. In a vault that has stood flooded and airless for four centuries the stuff is everywhere: a fine bitter dust on every fitting, stirred into the standing air the moment you break the seal and go crawling through it with a lamp in your teeth. Breathe that year on year, in the cramped dark where there's no wind to carry it off, and it settles in you. It starts as a cough that tastes of coins. Then the hands begin to shake — you notice it first trying to pick a lock or count out coin. Then, in the ones who worked the deep wet vaults longest, the mind goes soft: names slip, the day of the week goes, a salvor who could map a barrow blind sits by the fire not sure whose fire it is. That is Verdigris Lung, and the trade has always known it, and the trade has always dug anyway.

The thing to understand — and the thing the street-prophets get wrong when they call it a curse on the loot — is that it is the vault that poisons you, not the prize. A working carried home in a dry pack in the clean air does nothing to you. It is the sealed, damp, dead-aired room that does it, the hours spent breathing what shouldn't be breathed. So the sickness sorts people the honest way: the salvor who cracks a vent, waits out the bad air, works dry and comes up often takes far less of it than the desperate one who seals themselves into a flooded gallery for a week because they can't afford not to. The Deepening only makes it worse, because the good Old Work now lies in exactly the deepest, wettest, longest-shut places — the ones that give you the most green for the least grain.

There is no cure worth the name, only slowing it: work aired, work dry, come up often, and stop before your hands do. The Hessk, who breathe water and mind the wet with contempt, take it least and charge dearly to dive the drowned places for people who can't. And every so often a truly named relic is said to carry a real curse of its own, an old and authored malice — but that is a story about one cursed thing, not about the trade. The everyday cost of Old Work is duller and more certain than a curse: it is a green dust, a cough, a shake, and a good salvor grown old before their time.