I tried to run to him, but the mud sucked my feet down. The mud was impeding him too, because one time, when he kicked out, he slipped and fell out of view into the blackness. But his jumbled swear-words continued uninterrupted, and I was able to reach him just as he was getting to his feet again. I caught a glimpse of his face in the moonlight, caked in mud and distorted with fury, then I reached for his flailing arms and held on tight. He tried to shake me off, but I kept holding on, until he stopped shouting and I felt the fight go out of him. Then I realised he too had his arms around me. And so we stood together like that, at the top of that field, for what seemed like ages, not saying anything, just holding each other, while the wind kept blowing and blowing at us, tugging our clothes, and for a moment, it seemed like we were holding onto each other because that was the only way to stop us being swept away into the night.

When at last we pulled apart, he muttered: “I’m really sorry, Kath.” Then he gave a shaky laugh and added: “Good job there weren’t cows in the field. They’d have got a fright.”

I could see he was doing his best to reassure me it was all okay now, but his chest was still heaving and his legs shaking. We walked together back towards the car, trying not to slip.

“You stink of cow poo,” I said, finally.

“Oh God, Kath. How do I explain this? We’ll have to sneak in round the back.”

“You’ll still have to sign in.”

“Oh God,” he said, and laughed again.

I found some rags in the car and we got the worst of the muck off. But I’d taken out of the boot, just while I was searching for the rags, the sports bag containing his animal pictures, and when we set off again, I noticed Tommy brought it inside with him.

We travelled some way, not saying much, the bag on his lap. I was waiting for him to say something about the pictures; it even occurred to me he was working up to another rage, when he’d throw all the pictures out of the window. But he held the bag protectively with both hands and kept staring at the dark road unfolding before us. After a long period of silence, he said:

“I’m sorry about just now, Kath. I really am. I’m a real idiot.” Then he added: “What are you thinking, Kath?”

“I was thinking,” I said, “about back then, at Hailsham, when you used to go bonkers like that, and we couldn’t understand it. We couldn’t understand how you could ever get like that. And I was just having this idea, just a thought really. I was thinking maybe the reason you used to get like that was because at some level you always knew.”

Tommy thought about this, then shook his head. “Don’t think so, Kath. No, it was always just me. Me being an idiot. That’s all it ever was.” Then after a moment, he did a small laugh and said: “But that’s a funny idea. Maybe I did know, somewhere deep down. Something the rest of you didn’t.”

Nothing seemed to change much in the week or so after that trip. I didn’t expect it to stay that way though, and sure enough, by the start of October, I started noticing little differences. For one thing, though Tommy carried on with his animal pictures, he became cagey about doing them in my presence. We weren’t quite back to how it was when I’d first become his carer and all the Cottages stuff was still hanging over us. But it was like he’d thought about it and come to a decision: that he’d continue with the animals as the mood took him, but if I came in, he’d stop and put them away. I wasn’t that hurt by this. In fact, in many ways, it was a relief: those animals staring us in the face when we were together would have only made things more awkward.

But there were other changes I found less easy. I don’t mean we weren’t still having some good times up in his room. We were even having sex every now and then. But what I couldn’t help noticing was how, more and more, Tommy tended to identify himself with the other donors at the centre. If, for instance, the two of us were reminiscing about old Hailsham people, he’d sooner or later move the conversation round to one of his current donor friends who’d maybe said or done something similar to what we were recalling. There was one time in particular, when I drove into the Kingsfield after a long journey and stepped out of the car. The Square was looking a bit like that time I’d come to the centre with Ruth the day we’d gone to see the boat. It was an overcast autumn afternoon, and there was no one about except for a group of donors clustered under the overhanging roof of the recreation building. I saw Tommy was with them—he was standing with a shoulder against a post—and was listening to a donor who was sitting crouched on the entrance steps. I came towards them a little way, then stopped and waited, there in the open, under the grey sky. But Tommy, though he’d seen me, went on listening to his friend, and eventually he and all the others burst out laughing. Even then, he carried on listening and smiling. He claimed afterwards he’d signalled to me to come over, but if he had, it hadn’t been at all obvious. All I registered was him smiling vaguely in my direction, then going back to what his friend was saying. Okay, he was in the middle of something, and after a minute or so, he did come away, and the two of us went up to his room. But it was quite different to the way things would have happened before. And it wasn’t just that he’d kept me waiting out in the Square. I wouldn’t have minded that so much. It was more that I sensed for the first time that day something close to resentment on his part at having to come away with me, and once we were up in his room, the atmosphere between us wasn’t so great.

To be fair, a lot of it might have been down to me as much as him. Because as I’d stood there watching them all talking and laughing, I’d felt an unexpected little tug; because there was something about the way these donors had arranged themselves in a rough semi-circle, something about their poses, almost studiedly relaxed, whether standing or sitting, as though to announce to the world how much each one of them was savouring the company, that reminded me of the way our little gang used to sit around our pavilion together. That comparison, as I say, tugged something inside me, and so maybe, once we were up in his room, it was as much me feeling resentful as the other way round.

I’d feel a similar little prickle of resentment each time he told me I didn’t understand something or other because I wasn’t yet a donor. But apart from one particular time, which I’ll come to in a moment, a little prickle was all it was. Usually he’d say these things to me half-jokingly, almost affectionately. And even when there was something more to it, like the time he told me to stop taking his dirty washing to the laundry because he could do it himself, it hardly amounted to a row. That time, I’d asked him:

“What difference does it make, which one of us takes the towels down? I’m going out that way anyway.”

To which he’d shaken his head and said: “Look, Kath, I’ll sort out my own things. If you were a donor, you’d see.”

Okay, it did niggle, but it was something I could forget easily enough. But as I say, there was this one time he brought it up, about my not being a donor, that really riled me.

It happened about a week after the notice came for his fourth donation. We’d been expecting it and had already talked it through a lot. In fact, we’d had some of our most intimate conversations since the Littlehampton trip discussing the fourth donation. I’ve known donors to react in all sorts of ways to their fourth donation. Some want to talk about it all the time, endlessly and pointlessly. Others will only joke about it, while others refuse to discuss it at all. And then there’s this odd tendency among donors to treat a fourth donation as something worthy of congratulations. A donor “on a fourth,” even one who’s been pretty unpopular up till then, is treated with special respect. Even the doctors and nurses play up to this: a donor on a fourth will go in for a check and be greeted by whitecoats smiling and shaking their hand. Well, Tommy and I, we talked about all of this, sometimes jokingly, other times seriously and carefully. We discussed all the different ways people tried to handle it, and which ways made the best sense. Once, lying side by side on the bed with the dark coming on, he said: