She gazed up at the shock-headed man before her and wondered why he never brushed his hair, and then she felt guilty for allowing herself such thoughts about a gentleman and her tray shook and her eyes wavered a little.

‘Ha, ha, ha, ha, ha, my dear Mrs Slagg, let me take your tray, ha, ha, until you have tasted the fruits of discourse and told me what you have been up to for the last month or more. Why have I not seen you, Nannie Slagg? Why have my ears not heard your footfall on the stairs, and your voice at nightfall, calling … calling …?’

‘Her ladyship don’t want me any more, sir,’ said Nannie Slagg, looking up at the doctor reproachfully. ‘I am kept in the west wing now, sir.’

‘So that’s it, is it?’ said Doctor Prunesquallor, removing the loaded tray from Nannie Slagg and lowering both it and himself at the same time to the floor of the long passage. He sat there on his heels with the tray at his side and peered up at the old lady, who gazed in a frightened way at his eye swimming hugely beneath his magnifying spectacles.

‘You are kept in the west wing? So that’s it?’ Doctor Prunesquallor with his forefinger and thumb stroked his chin in a profound manner and frowned magnificently. ‘It is the word “kept”, my dear Mrs Slagg, that galls me. Are you an animal, Mrs Slagg? I repeat are you an animal?’ As he said this he rose halfway to his feet and with his neck stretched forward repeated his question a third time.

Poor Nannie Slagg was too frightened to be able to give her answer to the query.

The doctor sank back on his heels.

‘I will answer my own question, Mrs Slagg. I have known you for some time. For, shall we say, a decade? It is true we have never plumbed the depths of sorcery together nor argued the meaning of existence – but it is enough for me to say that I have known you for a considerable time, and that you are no animal. No animal whatsoever. Sit upon my knee.’

Nannie Slagg, terrified at this suggestion, raised her little bony hands to her mouth and raised her shoulders to her ears. Then she gave one frightened look down the passage and was about to make a run for it when she was gripped about the knees, not unkindly, but firmly and without knowing how she got there found herself sitting upon the high bony knee-cap of the squatting doctor.

‘You are not an animal,’ repeated Prunesquallor, ‘are you?’

The old nurse turned her wrinkled face to the doctor and shook her head in little jerks.

‘Of course you’re not. Ha, ha, ha, ha, ha, of course you’re not. Tell me what you are?’

Nannie’s fist again came to her mouth and the frightened look in her eyes reappeared.

‘I’m … I’m an old woman,’ she said.