This means there are two flights of stairs between us and the front door, the higher flight narrow and slippery, the lower one wide and carpeted but with stair rods that come loose. In the high heels expected by the office I have to go down sideways, clutching the bannister. That morning I made it safely past the line of pioneer brass warming-pans strung on the wall of our stairway, avoided catching myself on the many-pronged spinning wheel on the second-floor landing, and sidestepped quickly down past the ragged regimental flag behind glass and the row of oval-framed ancestors that guard the first stairway. I was relieved to see there was no one in the downstairs hall. On level ground I strode towards the door, swerving to avoid the rubber plant on one side and the hall table with the écru doily and the round brass tray on the other. Behind the velvet curtain to the right I could hear the child performing her morning penance at the piano. I thought I was safe.

But before I reached the door it swung silently inward upon its hinges, and I knew I was trapped. It was the lady down below. She was wearing a pair of spotless gardening gloves and carrying a trowel. I wondered who she’d been burying in the garden.

“Good morning, Miss MacAlpin,” she said.

“Good morning.” I nodded and smiled. I can never remember her name, and neither can Ainsley; I suppose we have what they call a mental block about it. I looked past her towards the street, but she didn’t move out of the doorway.

“I was out last night,” she said. “At a meeting.” She has an indirect way of going about things. I shifted from one foot to the other and smiled again, hoping she would realize I was in a hurry. “The child tells me there was another fire.”

“Well, it wasn’t exactly a fire,” I said. The child had taken this mention of her name as an excuse to stop practising, and was standing now in the velvet doorway of the parlour, staring at me. She is a hulking creature of fifteen or so who is being sent to an exclusive private girls’ school, and she has to wear a green tunic with knee-socks to match. I’m sure she’s really quite normal, but there’s something cretinous about the hair-ribbon perched up on top of her gigantic body.