I shake my head.

'Keep working,' he says. 'Don't worry about me.'

I can't believe how peaceful he sounds.

'Muldoon?'

'Yes?'

'A favour, please.'

'Anything, Parker. Anything.'

'Undo these straps. Just the ones on my arms. Just my right arm will do. I want to eat my own food. I can't stand being fed like a baby. Will you do that?'

I look around the cell. Then at the door. Lucy's standing there, and she nods at me.

'Come on, Muldoon,' says Parker. 'What am I going to do?'

I lean over his body, to get to the strap. It comes loose with a strong tug, and Parker's hand strokes my face, just for a second. 'Thank you,' he says. 'Thank you.' Then he picks up the plastic spoon, and starts to feed himself.

'Who's this?' he asks.

'Her name's Lucy,' I reply.

'I can answer,' says the girl. She comes closer to Parker, but stops a few steps away from him. 'My name is Lucy Bell. I'm ten years old, nearly. Adverts mean nothing to me. And I've seen the stairway.'

Parker stops eating. 'You've seen it?'

'Yes. It came up on a game I was playing. I was alone, luckily. I've seen a million ads in my time, you know what I mean, and nothing gets me frozen. Sometimes I think I'm the unlucky one, because it must be nice to be really affected by something. Usually I just move to another machine when the screen freezes, but this was different I could tell, but I couldn't tell why. Something about the stairway, the way it goes on for ever…'

'Yes,' said Parker. 'For ever…'

'And it made me really sad to watch it going upwards like that, with nobody on it.'

'Yes. Sad.'

It made me put my hand out. I couldn't help myself. I put my hand against the screen. It was cold, the screen, like the machine had broken down. But it was nice, just to let my fingers rest against the steps. I felt like I was walking up it just by touching. And I was so sad, I started to cry. I don't know why, so don't ask me.'

'I know,' said Parker. 'I know.'

'And ever since, this sadness… it won't leave me alone. I feel like I've missed out on something. Inspector Muldoon tells me you were brave, that you saved a flot by giving her your scattermask.'

'No, it wasn't brave. The staircase made me take the mask off. I could see the girl hadn't seen it yet, she was doing her best to look away. I only gave her the mask because I didn't need it any more.'

'Well, I still think it was brave. And I was thinking, maybe I should volunteer for being tested, or something. Because surely there's something inside me, something strange that adverts don't like. And I know all the normal stuff, the spoiler drugs and all that, I know they don't work on this stairway thing. Maybe I should-'

'No.' Parker came up as far as he could. 'I've heard what happens to people when they extract it. It's not good. Not good. You just work with Inspector Muldoon here. Maybe you can find out where the adverts are coming from, eh? Working together?'

'I'd like that. I'd like to be a commcop one day.'

'You will be, kid. You will be.'

I was watching all this from one corner. I wasn't sure what I was aiming at, bringing these two people together. This young girl, barely out of childhood, and having already witnessed and survived what amounted to a murder attempt; and this poor young man, this rookie cop, who had become just another victim. A young man strapped to a bed, and with a plastic spoon in his hand. They seemed happy together, at least. Parker then called over to me, 'You keep Brendel away from this girl, OK?'

'I'm doing that already.'

'Good. Now leave me, please.'

He pushed Lucy towards me, his face suddenly hardened into a frown. 'I'll get you strapped up again,' I said. But Lucy was in the way, and I was walking around her when a sudden choking noise frightened me into stillness. It was Parker. Right in front of me, he had stuck the plastic spoon down his throat. He was jamming it, again and again, deeper and deeper into his mouth. For a good few seconds I couldn't move; the look in his eyes, the sheer pleasure of submission that played there, it rooted me to the spot. Coming out of the freeze, I simultaneously called for the guard, pushed Lucy aside, and rushed over to the bed. With one hand on his face, and the other forcing his mouth open, I tried to make him breathe, to breathe, to breathe again. His right hand had squeezed around my throat. Where the fuck was that guard? Behind me, somewhere behind me, and far, far away, Lucy was screaming.

I got home at eleven, dead beat and frazzled. Lucy was with me. She was showing all the tagging skills of a jetgirl. I shoved her down on the sofa. 'You sleep there,' I said. 'Don't think I'm giving up my bed for you.'

'I don't want to sleep,' she answered. 'It's the daytime. Will Parker be all right?'

'What's all right? We're keeping him alive against his wishes. Is that all right?'

'Maybe we should let him… you know?'

'Don't even think that, right? I mean it, girl.'

I took off my gun and mask, and it seemed like I was taking off my skin, so long had I worn them.

'OK,' said the girl. 'This is a nice place. Wow, you've got a TV.' She said it like she'd never seen one before.

'It's off limits,' I told her. 'And I've got the password.'

'Sure. You live here alone?'

'Yes.'

'No husband?'

'I'm going to bed.'

'No boyfriend? Girlfriend?'

'Bye.'

I carried the mask and gun into my bedroom, stripped naked, fell slowly, blissfully into bed. I don't know what I dreamed of. It had been a long, bad night and morning, and I wish I could leave it at that, the night and the black sleep and the end of the story.

Some things you just can't wish for.

I woke up feeling worse than when I'd gone to sleep. I don't know what time it was. I had to shift through several layers of reality until I got the noise fixed in my head, the sound of a television far off in the distance. At first I thought I was fighting some killer ad along the shining pavilions of a golden arcade, Parker at my side; then I was thinking it was all a dream, and how glad I was at that realization; then I heard the sound of my spoiler gun firing in a long continuous burst of static, and I was back in the arcade once again, but only for a second as I caught the last thread of reality. The noise was coming from the living room, chased by a terrible howling.

The blind sight of my mask was staring at me from where I'd left it hooked to the wall, but the gun was gone. That stupid girl…

I burst the door open, naked.

That stupid fucking girl was just sitting there, right in front of the TV. She had the gun in her hands, and was still firing it at the screen. The howl had gone from her now, replaced by a whimpering cry. I don't know how she broke the password on the set; that girl always was a mystery. And still she fired. Fired and fired at the golden stairway that travelled ever upwards, unrolling on the screen like an escalator to the sky.

Just kept on unrolling, right through everything the girl could hope to spoil it with.

Yeah. I saw it. I was naked, straight from bed. And the mask was still hanging from the hook in the bedroom.

'Don't look! Don't look at it!'

Those were the last words I heard, and they seemed to freeze on the air like drops of ice. Everything froze. Everything froze for me.

'I'm sorry,' said Lucy. 'I tried to…' 'What?'

'Come back to me, please!'

Moving through slow ice that melted, I came alive with my eyes tight on the screen, where a dancing elephant played gaily. There was no sign of the stairway. Everything seemed normal, perfectly normal. Me, a young girl, a television set. Almost a family. There were no feelings inside me, nothing I could touch.