After a fortnight Sebastian said: ‘I can’t stand Mr Samgrass any more. Let’s go to London,’ so he came to stay with me and now began to use my home in preference to ‘Marchers’. My father liked him. ‘I think your friend very amusing,’ he said. ‘Ask him often.’

—

Then, back at Oxford, we took up again the life that seemed to be shrinking in the cold air. The sadness that had been strong in Sebastian the term before gave place to a kind of sullenness even towards me. He was sick at heart somewhere, I did not know how, and I grieved for him, unable to help.

When he was gay now it was usually because he was drunk, and when drunk he developed an obsession of ‘mocking Mr Samgrass’. He composed a ditty of which the refrain was, ‘Green arse, Samgrass – Samgrass green arse’, sung to the tune of St Mary’s chime, and he would thus serenade him, perhaps once a week, under his windows. Mr Samgrass was distinguished as being the first don to have a private telephone installed in his rooms. Sebastian in his cups used to ring him up and sing him this simple song. And all this Mr Samgrass took in good part, as it is called, smiling obsequiously when we met, but with growing confidence, as though each outrage in some way strengthened his hold on Sebastian.

It was during this term that I began to realize that Sebastian was a drunkard in quite a different sense to myself. I got drunk often, but through an excess of high spirits, in the love of the moment, and the wish to prolong and enhance it; Sebastian drank to escape. As we together grew older and more serious I drank less, he more. I found that sometimes after I had gone back to my college, he sat up late and alone, soaking. A succession of disasters came on him so swiftly and with such unexpected violence that it is hard to say when exactly I recognized that my friend was in deep trouble. I knew it well enough in the Easter vacation.

Julia used to say, ‘Poor Sebastian. It’s something chemical in him.’

That was the cant phrase of the time, derived from heaven knows what misconception of popular science. ‘There’s something chemical between them’ was used to explain the over-mastering hate or love of any two people. It was the old concept of determinism in a new form. I do not believe there was anything chemical in my friend.

The Easter party at Brideshead was a bitter time, culminating in a small but unforgettably painful incident. Sebastian got very drunk before dinner in his mother’s house, and thus marked the beginning of a new epoch in his melancholy record, another stride in the flight from his family which brought him to ruin.

It was at the end of the day when the large Easter party left Brideshead. It was called the Easter party, though in fact it began on the Tuesday of Easter Week, for the Flytes all went into retreat at the guest-house of a monastery from Maundy Thursday until Easter. This year Sebastian had said he would not go, but at the last moment had yielded, and came home in a state of acute depression from which I totally failed to raise him.