A device does a set task by itself: it carries, keeps, watches, measures or tends, and goes on doing it long after the hand that set it has gone. Some are pure artifice, worked by clockwork, springs, weights and engines alone. Others are charged by one of the Three Workings: by arcane method, by a spirit bound to the thing, or by a blessing laid on it for an office. Each is made by one or more of the useful trades, and each is kept, renewed and answered for by somebody. Those made to keep a place by force are not here; they are Constructs among the Lurking Dangers.

Card of Apothecary's Crucible
Operators · Arcane

Apothecary's Crucible

Preparer of Compounds

A preparation machine of vessels, heating coils, condensers and dosing arms that compounds medicines and reagents from a filed formulary. It follows the recipe exactly and cannot tell whether the recipe is safe.

Card of Archive Hand
Servants · Arcane

Archive Hand

Fetcher of Books and Registers

A squat brass body on six spider's legs, with three lenses and one great many-fingered hand, kept to climb the shelves of an archive and bring down what is asked for. It reads the press-marks, not the books.

Card of Ash Butler
Servants · Arcane

Ash Butler

Servant of the Household

A tall, thin domestic construct of iron, brass and lacquered wood with a pale ceramic mask, kept by a few great houses to answer doors, carry trays and keep the household's hours. It does exactly what it is told, which is its virtue and its danger.

Card of Bell Clerk
Servants · Arcane

Bell Clerk

Receiver of Callers and Messages

A small clerk-construct with a cracked ceramic face and a bell in its chest, set at a desk to receive callers, enter their names, take their letters and ring for whoever is wanted. It is polite, slow and immovable.

Card of Bridge Titheman
Watchers · Arcane

Bridge Titheman

Taker of Tolls

A toll-taking machine set beside a bridge or a barred road, with a coin platform, an inspection lens and the bar of the crossing in its keeping. It takes the toll, lifts the bar, and does not bargain.

Card of Chapel Listener
Watchers · Arcane

Chapel Listener

Keeper of Hearing

A fixed apparatus of carved stone, iron and brass horns built into a chapel wall or an archive's entrance, made to listen and to keep a record of what it hears. It is not a figure, though it is carved like one, and it does not move.

Card of Coal Sister
Servants · Arcane

Coal Sister

Furnace Hand

A broad, heavy iron furnace-hand with a narrow slit for an eye and four-fingered hands, made to feed furnaces and work boilers where the heat would kill a man in an hour. The works call them sisters, and nobody remembers why.

Card of Engine Reader
Operators · Arcane

Engine Reader

Watcher of Gauges

A fixed apparatus of lenses, a calculating drum and a printing recorder, built to watch the gauges of an engine, record them and work the valves when a reading passes its mark. It watches through the night so that an engineman may sleep.

Card of Gallery Watcher
Watchers · Arcane

Gallery Watcher

Hidden Observer

An observing device hidden in a painting's frame or a carved grotesque on a wall, made to watch a room and give the alarm. It cannot stop anybody. It can make sure that somebody comes.

Card of Gate Mind
Operators · Arcane

Gate Mind

Keeper of Bolts

A lock-control device built into a great door or the wall beside it, which compares the seal and the word it is given with those it was set to accept, and works the bolts and lifts accordingly. It is the reason a vault has no keyhole.

Card of Glass Examiner
Operators · Arcane

Glass Examiner

Tester of Lenses and Stone

An inspection apparatus of lenses, gantries and test frames that measures a piece of glass, a lens or a fitted stone and tests how it answers to a set charge. It cannot tell a good piece from a bad one; it tells whether a piece matches its standard.

Card of House Threader
Servants · Arcane

House Threader

Keeper of the Wardrobe

A small, fine construct with a white ceramic head and needle-fingered hands, kept by a few great households to mend, press and preserve their clothes. It is the gentlest device in the realm and one of the dearest.

Card of Mortuary Attendant
Servants · Arcane

Mortuary Attendant

Washer and Registrar of the Dead

A tall, narrow construct of iron and wood with a stained porcelain face and long arms, made to wash the dead, register them and lay them out for the examiner. It does the work no hand wants and keeps the book no clerk keeps well.

Card of Platform Porter
Servants · Arcane

Platform Porter

Carrier of Loads

A squat, broad-chested carrier with massive arms and short legs, made to lift trunks, crates and bales at stations and quays. It carries more than three men and asks for nothing but a charge and a docket.

Card of Procession Child
Servants · Arcane

Procession Child

Bearer of Candles and Censers

A small construct in the vestments of an acolyte, with a chipped childlike ceramic face, made to carry candles and censers in procession and to tend the lights of a nave. Visitors find it touching and choirs find it unsettling.

Card of Signal Widow
Operators · Arcane

Signal Widow

Keeper of the Relay

A relay apparatus of spindles, rings and insulated connections that receives signals, records them on punched tape and passes them on. The signal clerks named it for the way it sits alone in the tower all night, listening.

Card of Surgical Assistant
Operators · Arcane

Surgical Assistant

Hands of the Operating Theatre

A six-armed rig of instruments and surgical lamps hung from a theatre ceiling or folded on a wall, which holds, passes and steadies at a surgeon's instruction. It does not cut on its own and is not trusted to.

Card of Valve-Keeper
Operators · Arcane

Valve-Keeper

Regulator of the Flow

A fixed regulator of heavy valves and inspection chambers that governs the flow through a works' circuit of pipes, opening and closing as the pressure and the charge require. The works call it the heart, and treat it accordingly.

How the trades work: Artifice and the Useful Arts.