What a grand house tells you from the back stairs

The front stairs of a grand house were built to be looked at. The back stairs were built to be used, and nearly everything I want to know about the people in my novels is on the second set. These are the things I have learned to look for on the way down.

The treads. On the front stairs there is carpet and a gleam of polish. On the back stairs the wood is often bare and worn into a shallow dip, and in the houses I have walked the dip tends to sit a little towards the wall, where a spare hand could steady itself while the other held a tray. You can read years of traffic in an inch of missing oak.

The bells. Somewhere in the basement passage there is usually a board of them in a row, each with a room painted beneath it in tidy letters: Library, Drawing Room, Blue Bedroom. Many hung on coiled springs, so a bell went on trembling after it rang and anyone coming back from the scullery could see which room had called. It is a whole system built on one assumption, that somebody was always within earshot.

The door. Between the family's corridors and the service ones there was often a door covered in green cloth over padding. It is usually described as the line that kept the staff out of sight, and it was. I think it was just as much about sound. The family wanted to be looked after by a house that appeared to run itself, and work is noisy.

The keys. The housekeeper carried a ring of them, and I have stood in front of more than one tea caddy with its own small brass lock. Tea was once costly enough to be kept under key, and in some households the mistress held that key herself rather than trust it downstairs. Trust, in a house like that, was something you could see the shape of.

The windows. Service rooms often sit half below ground and take their light from high up, so that from the kitchen table you see the boots of whoever crosses the yard before you ever see a face. My kitchen maids know half the village by its shoes, and I did not invent that habit; the window gave it to me.

The clock. A servants' hall usually had its own, plain faced and loud, and it was often the most important object in the room. Upstairs, a guest could be late for dinner and be forgiven by the soup. Downstairs, lateness went into somebody's character.

The names. In some households a footman answered to a name that belonged to the post rather than to him, handed down from one young man to the next as if it came with the livery. Readers stop at that detail more than any other I use, and they should. It is the plainest statement a house ever made about who was meant to be seen.

The listening. Put all of it together, the springs, the padded door, the dip in the stair, the window at the height of a boot, and you have a building arranged around people who spent their days attending to someone else. That is why I tell my stories from the corridor. The person standing just outside the door heard nearly everything that was said in the room, and was almost never asked what she thought of it.

Staff see a different house, and in Two Minutes to Noon the story belongs to a chambermaid pinning a bride's hood when the Great Kanto Earthquake begins.