Margot's servants did not seem surprised at the arrival of another guest.

'I think I shall stay here a long time, said Professor Silenus after dinner. 'I have no money left. Are you going soon?

'Yes, I'm going back to Oxford again to learn theology.

'That will be a good thing. You used not to have a moustache, used you? he asked after a time.

'No, said Paul. 'I'm just growing one now. I don't want people to recognize me when I go back to England.

'I think it's uglier, said Professor Silenus. 'Well, I must go to bed.

'Have you slept any better lately?

'Twice since I saw you. It's about my average. Good night.

Ten minutes later he came back on to the terrace, wearing silk pyjamas and a tattered old canvas dressing-gown.

'Can you lend me a nail file? he asked.