'He tried to get me to pray again, kneeling on the floor and all that nonsense. But I asked him what I was supposed to have done wrong.'

'What was it?'

'Oh, Beauchamp told him. We had a bit of tussle about physical and chemical change and then somehow we got on to the Host. Does Christ reside in the molecules themselves or only in the molecules organised into bread? And then I decided I'd had enough of pretending you can ask questions about some things and not about others. I'm not going to Mass any more.'

'You told Byrne that? J 'Yes. And that's when he shouted at me to get down on my knees. But you should have seen the sweat start out on him.'

'Ah.'

'I said what was the point of praying if I didn't believe there was anyone to pray to. And he said if I prayed I'd be vouchsafed an answer. A lot of bloody nonsense.'

'Don't be too sure. There are some very big brains in the Church, scientific brains too.'

'That's just what he said. But I told him again that there has to be one universe, not two. That science has to be allowed to knock at all doors.'

'What's he going to do with you?'

'There's not much he can do. He can't expel me, because that's no answer. Besides, he knows that I'll probably get a state scholarship, and there's not been one here for a hell of a long time. A bit of a dilemma.' Roper getting the better of authority again. 'And the exam isn't far off now, and he can't very well send me somewhere for special theological instruction. So there it is.'

There it was. I was still in the Church myself at that time. My own studies were technical and aesthetic, not posing any fundamental questions. I was studying Roman poets who glorified Roman conquerors or, in the long debilitating pax after conquest, pederasty and adultery and fornication. I was also reading, fretting at their masochistic chains, the correct tragedians of the Sun King. But there was one member of the staff who was Polish, a lay brother called – after the inventor of the Russian alphabet – Brother Cyril. He'd only come to the school three years before and there was nobody for him to teach, since he knew only Slavonic languages and a little English and very little German. But one day I found him reading what he told me was Pushkin. I took a liking to those solid black perversions of Greek letters and at once my future (though naturally, sir, I did not know this yet) was fixed. I romped through Russian and was allowed to take it as a main subject for the Higher School Certificate, dropping Modern History. Modern History, sir, has had its revenge since then.

I did not know at that time – the time of hearing Roper on the molecular structure of the Eucharist – how soon both our futures were about to begin. The year was 1939. Roper and I were both coming up to eighteen. Father Byrne had intimated, in various morning assemblies, that the Nazi persecution of the Jews was nothing more than God's own castigation of a race that had rejected the Light, a castigation in brown shirts with a crooked cross. 'They crucified our loving Saviour, boys.' (Roper, sitting next to me in the prefects' front row, said quietly, 'I thought it was the Romans who did that.') 'They are,' cried Father Byrne, 'a race on whom Original Sin sits heavy, much given to sexuality and money-making. Their law forbids neither incest nor usury.' And so on. Father Byrne had a long and rubbery body and more than he needed of neck. He now, with great skill, made himself both neckless and tubby and gave us a sort of Shylock performance, full of lisping dribbling and hand-rubbing. 'Dirty Chrithtianth,' he spat. 'You vill not cut off your forethkinth.' He loved to act. His best performance was of James I, and he would willingly spice any teacher's history lesson, whatever the period being taught, with a session of blubbering and slavering and doubtful Lallans. But his Jew was not bad. 'Oh yeth, ve vill do you all down, dirty Chrithtianth. You vill have none of my thpondulickth. Oy oy oy.'

Roper and I were too liberal to laugh at this. We understood that the Nazis were persecuting Catholics as well as Jews. We learned a bit about evil now from the newspapers, not from the religious tracts that stood in a special rack in the school library. Concentration camps fascinated us. Mashed bloody flesh. Bayonets stuck in the goolies. Sir, say what you will, we half-become what we hate. Would we, any of us, have had it otherwise, the film run back to the time when there were no gas-chambers and castrations without anaesthetic, then a new, sinless, reel put in the projector? We will these horrors to happen and then we want to feel good about not wreaking vengeance in kind.

Roper and I, instead of Father-Byrne-Shylock dribbling over the reports from black Germany, would have done better to sweat it all out in a decent bout of sex in the chapel. I said to Roper: 'What about good and evil?'

'It seems reasonable to suppose,' said Roper, chewing on a fibre of stewed mutton, 'that good is the general name we give to what we all aspire to, whatever thing it happens to be. I think it's all a matter of ignorance and the overcoming of ignorance. Evil comes out of ignorance.'

'The Germans are said to be the least ignorant people in the world.'

He had no real answer to that. But he said: 'There are particular fields of ignorance. They're politically ignorant, that's their trouble. Perhaps it's not their fault. The German states were very late in being unified, or something.' He was very vague about it all. 'And then there are all those forests, full of tree-gods.'

'You mean they have atavistic tendencies?'

He didn't know what the hell he meant. He knew nothing now except the trilogy of sciences he was studying for the Higher School Certificate. He was becoming both full and empty at the same time. He was turning into a thing, growing out of boyhood into thinghood, not manhood – a highly efficient artefact crammed with non-human knowledge.

'And,' I asked, 'what will you do when war breaks out? Just say that it's all a matter of ignorance and the poor sods can't help it? Because they'll be coming for us, you know. Poison gas and all.'

He suddenly seemed to realise that the war was going to touch him as well as other people. 'Oh,' he said, 'I hadn't thought about that. That's going to be a bit of a nuisance, isn't it? There's this question of my state scholarship, you see.' There was no doubt that he was going to get one of those; his examination results were going to be brilliant.

'Well,' I said, 'think about it. Think about the Jews. Einstein and Freud and so on. The Nazis regard science as a kind of international Jewish conspiracy.'

'They have some of the finest scientists in the world,' said Roper.

'Had,' I said. 'They're getting rid of most of them now. That's why they can't win. But it'll take a long time to persuade them they can't win.'

That was a lovely summer. Roper and I, with ten pounds each in our wallets, hitch-hiked through Belgium, Luxembourg, Holland and France. We had a month of bread and cheese and cheap wine, of the 'J'aime Berlin' pun about Chamberlain the umbrella man, of war talk under brilliant sun. We spent one night in our sleeping-bags near the teeth of the Maginot Line, feeling well protected. We were back in England three days before war broke out. Our examination results had come through in our absence in soon-to-be-locked-up Europe. I'd done well; Roper had done magnificently. There was some talk of my going to the School of Slavonic Studies in London; Roper had to wait for news of his scholarship. We were both drawn, during the interim time, to the only community we knew; we went back to school.

Father Byrne was now very good as Suffering Ireland. He came from Cork and hinted that his sister had been raped by the Black and Tans during the Troubles. 'Warmongering England,' he cried in morning assembly. Antichrist Germany never came into it. 'She has done it again, declaring war, backed by the Jews with their wads of greasy notes.' A brief impersonation of International Finance. 'This war, boys, is going to be a terrible thing. Europe will soon be swarming, if not swarming already, with ravaging and pillaging soldiery. It will be Ireland all over again, the leering and tramping louts, not a thought in their heads but this damnable sex, an abomination before Almighty God and His Blessed Mother.' Soon Roger Casement was brought in. And then he gave us the news that all scholarships were temporarily suspended. I said to Roper, after a morning of yawning lounging in the school library, 'Let's go out and get drunk.'