Polly turned the deadlock, and before reaching for the latch dabbed at her eyes with the hem of her nightshirt. She dreaded to think what sort of state her face must be in. Her eyes stung and she wondered if they were red and puffy, but there was nothing to be done. She opened the door.

Peter had seen Polly’s shadow in the crack of light beneath the door, he had even fancied that he’d heard her breathing as the door chain rattled – but he was too late. He could hear noisy footsteps bounding up the stairs behind him. His enemy had returned. Quickly he stepped back out of the gloomy light and crushed himself into the darkness of the landing, pressing himself hard against the wall.

The door of Polly’s flat opened. The American reached the top of the stairs and rushed in without breaking his stride. He did not see Peter in the darkness and Peter did not leap out to attack him as he had half intended to do. It was all too quick, too confusing. Killing was not an easy business. The door closed.

Peter stood for a moment, dumbfounded, scarcely able to contain his thoughts. She had been there. The door had been open. He had missed his chance to kill the man and possess Polly, have her for his own. On the other hand, he was inside the house. He had penetrated her environment and they did not know it. They thought themselves safe. He must work out his next move. Peter retreated down the stairs and sat down on the threadbare carpet to think.

Inside the attic flat Polly kissed Jack, grateful to him for trying to fight the Bug and glad not to be alone. Jack returned her kisses while trying to catch his breath, tasting the salty tears around her lips. She felt so small and helpless. Jack longed to protect her, to possess her. At that moment, he and Peter were experiencing very similar emotions. Jack steeled himself against such thoughts, against Polly’s magic.

“I didn’t get him,” he said. “He’d gone.”

“You’ll never get him,” Polly replied. “He’s invulnerable. I’ve been trying for so long.”

Jack put his lips to Polly’s ear. “Did you ever think about killing him?” he whispered.

What a question. Of course she’d thought about killing him. Victims of stalkers often find themselves thinking about nothing else. Polly had wished that sick bastard dead a thousand times.

“No, I don’t mean wishing him dead, Polly,” Jack said. “I mean actually getting him dead. Killing him. For real.”

“Don’t joke,” Polly replied. “You don’t know what it’s like. If you knew what it was like to be a victim, how awful it is, you wouldn’t joke.”

Gently Jack sat Polly down upon the bed and fetched her drink. “I’m not joking,” he said. “I’ll kill him for you.”

“Oh, Jack, if only.” She was near to tears again.

“Polly.” Jack spoke firmly now. “I’ll kill him for you. I just need to know who he is and where he lives.”

Polly’s head swam. It was such a lovely thought. Such a truly lovely thought. To have the Bug dead. Squashed. Gone for ever. Not warned off, not threatened with arrest, not made to give a solemn undertaking to stay away, but dead. Completely and utterly ceasing to exist. It was a beautiful dream. But that was what it was, a dream. You couldn’t just kill people.

Jack knew what she was thinking. “I’m a soldier,” he said. “Killing people is what I do. It’s not such a big deal.”

“When soldiers kill people it’s legal?”

“Since when did you ever care about the law? Certainly not when I knew you. There is a higher law, that’s what you used to say. Or maybe you think it’s OK that I kill strangers whose only crime is that they come from a different country. Persecuting the weak and intimidating women is fine as long as it’s legal.”

“I’m not talking about justice,” Polly said. “I’m talking about the law, that’s all. You’d get caught.”

Jack smiled that charming, confident smile. “Hey, I’m out of here tomorrow. I’m gone. I’m on an army transport to Brussels and then home to the States. You think if I bump off some sad lowlife, nolife nut in Stoke Newington, somebody’s going to say, ‘Hey, I bet a general in the United States army did this.’ Never in a trillion years.”

“Stop talking like that.”

“I was in Special Forces, Polly. Believe me, I know how to hit a guy discreetly. I can do it on my way to the airfield and still get breakfast.”

Polly was silent now. She wanted to tell him to stop again but the words would not come.

“I mean, the guy’s connected to you,” Jack continued, “but he’s not connected to me, right? Of course you’re connected to me, Polly, but only you and I know that, don’t we? That’s true, isn’t it, Polly?”

By a stroke of great good fortune Jack had stumbled upon a way of finding out exactly what he most wanted to know.

“I mean, if I’m going to do this thing I need to be sure that there’s nothing to connect me with you. Is there anything?”

Polly spoke as if in a trance. “I only told the whole story once, to a guy called Ziggy, in a VW camper near Stonehenge, but he was stoned and didn’t hear me.”

“Anybody else?”

“A few people, you know, over the years. Every now and then I get drunk and say that I once fucked a soldier at Greenham, but I never go into details. I don’t like to remember, Jack.”

Polly was speaking, but it seemed like she was listening to someone else. She could hear herself reassuring Jack. “There is no way on earth anyone could connect me with you, Jack.”

They stared at each other for a moment. Jack was grinning.

“Well, there you are, then,” he said breezily. “Where do I find him?”

He wasn’t joking, she could see that. She was in a dream, but it was rapidly becoming reality. Polly drew herself back from the brink. It was time to put an end to this dangerous fantasy.

“You can’t kill him. I don’t want you to kill him. I don’t want you even to talk about it. No matter how much I hated someone I would never ever want to kill them.”

Jack just kept grinning, his handsome eyes sparkling and his voice light. “People die all the time. It’s no big deal.”

“Shut up.”

“Just try to think of this guy as an exploiter of the planet. You remember what I was saying before? About how every breath we take we’re doing damage to others? Consuming the world’s resources, abusing the world’s peasants. Why not let me reduce the abuse?”

“Shut up!”

“This man is an evil, useless, pointless waste of food and air. Let me take him out. We’ll all breathe easier. You’ll be doing the world a favour.”

Jack was still smiling; it was such a friendly smile. “Tell me where he lives.”

“No!” said Polly, deeply shocked at the sincerity of Jack’s tone. He really did mean it. He really did believe that murdering people could be justified just because you didn’t like them. She was horrified at the thought. No matter what a person’s crimes, the death penalty was never justified. No one had the right to take a life. The fact that she was the victim did not change that fact.

“Shut up, Jack! I mean it. Stop talking like that, it’s horrible.”

Jack shrugged and went to fix more drinks. “OK, OK,” he said. “If you don’t have the courage to defend yourself. If your precious principles have so weakened you that you don’t have the guts to make your own personal decision about what’s right. Lenin knew what to do, didn’t he? If you have something you believe in you defend it by any means necessary. Don’t you believe in your right to happiness, Polly?”

“Of course I believe in it!”

“Then have the courage to defend it.”

Jack poured Polly another huge Bailey’s and Coke and she gulped it down hungrily.

“Polly, I have to do something to help. This guy is truly a terrible thing. We can’t just let him carry on abusing you.”