'We wouldn't need to sabotage the reactors or release any radioactivity. The threat would be sufficient once we'd taken over the power stations,'
'The stations? How many? Where?'
'One here, one in France, one in Germany. The action would be co-ordinated and it would be sufficient. It's not what we could do when we had taken them over, it's what people would think we could do. War is out of date and unnecessary. We don't need armies. All we need are a few trained, intelligent and dedicated comrades with the necessary skills. What you call terrorism can change the world, and it's more cost-effective in human life than the militaristic industry of death which my father made his career. They've only one thing in common. A soldier, in the end, has to be prepared to die for this cause. Well, so are we.'
Amy cried: 'It can't happen! Governments won't let it happen!'
'It is happening and they can't stop it. They aren't united enough and they haven't the will. This is just the beginning.'
Amy looked at her. She said: 'Stop this boat. I'm getting off.'
'And swim ashore? You'd either drown or freeze to death. And in this mist.'
Amy hadn't noticed the thickening mist. One moment it seemed to her that she could see the distant lights of the shore, like stars, almost she could see the blackness of the slopping waves, could peer ahead. But now, slowly and inexorably, there was a clammy wetness. She cried: 'Oh God, take me back. You've got to get me off. Get me off. I want Timmy. I want Neil.'
'I can't do that, Amy. Look, if you don't want to be part of all this just say so when the boat arrives. They'll put you ashore somewhere. It won't be on this coast necessarily, but somewhere. We don't want reluctant recruits. There would be enough trouble as it is fitting you up with a new identity. But if you didn't want to be part of it, didn't want to be committed, why did you kill Hilary Robarts? D'you think we wanted a murder investigation centred on Larksoken, police attention, Rickards actually on the site, every suspect's past scrutinized, nothing left private? And if Rickards had arrested you, how sure could I be that you wouldn't crack, tell him about Operation Birdcall, turn Queen's evidence?'
Amy cried: 'Are you crazy? I'm on this boat with a bloody crazy woman. I didn't kill her.'
'Then who did? Pascoe? That's almost as dangerous.'
'How could he? He was on his way back from Norwich. We lied to Rickards about the time but he was back at the caravan by 9.15 and we were there together all the evening with Timmy. And all that business about the Whistler cutting her forehead, the hair, we never knew any of that. I thought you killed her.'
'Why should I?'
'Because she discovered Operation Birdcall. Isn't that why you're running, because you've got no option?'
'You're right that I've got no option. But it's not because of Robarts. She didn't find out. How could she? But someone did. It isn't only the Hilary Robarts murder. They've started checking up on me, the security services. Somehow they've got a lead, probably from one of the German cells or from a mole in the IRA.'
'How do you know? You could be running away for nothing.'
'There are too many coincidences. That last postcard you hid in the abbey ruins. I told you it was put back the wrong way. Someone had read it.'
'Anyone could have found it. And the message wouldn't have meant anything. It never meant anything to me.'
'Found it in late September when the picnic season's well over? Found it and carefully put it back? And that wasn't all. They've checked on my mother's flat. She has a housekeeper who used to be my nanny. She rang to let me know earlier today. I didn't wait after that. I sent the signal to say I was getting out.'
On their starboard side the occasional lights of the shore were blurred by the mist but still visible. And the throb of the engine sounded less intrusive now, almost a gentle companionable hum. Or perhaps, thought Amy, she had got used to it. But it seemed extraordinary to be moving so quietly and steadily through the darkness, hearing Caroline's voice saying unbelievable things, talking about terrorism and flight and betrayal as calmly as if she were discussing the details of a picnic. And Amy needed to hear, needed to know. She found herself saying: 'Where did you meet them, these people you're working for?'
'In Germany when I was seventeen. My nanny was ill and I had to spend the summer holiday with my parents. My father was stationed there. He didn't take much notice of me, but someone else did.'
'But that was years ago.'
'They know how to wait and so do I.'
'And this nanny-housekeeper, is she a member of Birdcall too?'
'She knows nothing, absolutely nothing. She's the last person I'd choose. She's a silly old fool who's hardly worth her bed and board, but my mother finds a use for her, and so do I. She hates my mother, and I've told her that Mummy is checking on my life and to let me know at once if there are any telephone calls for me or any visitors. It helps make her life with Mummy tolerable. It makes her feel important, helps her to believe that I care about her, that I love her.'
'Do you? Do you love her?'
'I did once. A child has to love someone. I grew out of it and I grew out of her. Well, there was a call and there was a visitor. On Tuesday a Scot, or someone pretending to be a Scot rang. And today a visitor came.'
'What sort of visitor?'
'A young man who said he'd met me in France. It was a lie. He was an impostor. He was from MI5. Who else could have sent him?'
'But you can't be sure. Not sure enough to send that signal, leave everything, put yourself in their mercy.'
'I can. Look, who else could it have been? There were three separate incidents, the postcard, the telephone call, the visitor. What else should I wait for? The security services kicking down my door?'
'What was he like, this man?'
'Young. Nervous. Not very attractive. Not particularly convincing either. Even Nanny didn't believe him.'
'Funny kind of MI5 officer. Couldn't they do better than that?'
'He was supposed to be someone I'd met in France who fancied me and wanted to see me again and had steeled himself actually to call at the flat. Of course he appeared young and nervous. That's the kind of man they'd send. They'd hardly choose a seasoned forty-year-old veteran from Curzon Street. They know how to select the right man for the job. That's their business. He was the right man, all right. Perhaps he wasn't even meant to be convincing. Perhaps they were trying to scare me, get me to react, flush me out.'
'Well, you have reacted, haven't you? But if you're wrong, wrong about it all, what will they do, the people you work for? You've blown Operation Birdcall by running away.'
'This operation has been aborted but the future won't be jeopardized. My instructions were to telephone if there was firm evidence that we'd been discovered. And there was. And that's not all. My telephone is being bugged.'
'You can't possibly tell that.'
'I can't tell it for certain, but I know.'
Suddenly Amy cried: 'What did you do about Remus? Did you feed him, leave him water?'
'Of course not. This has to look like an accident. They've got to believe that we're lesbian lovers who went for an evening boat trip and were drowned. They've got to believe that we only intended to be away for a couple of hours. He gets fed at seven. They've got to find him hungry and thirsty.'
'But they might not start looking for you until Monday! He'll be frantic, barking and whining. There's no one close to hear. You bloody bitch!'
Suddenly she flew at Caroline, screaming obscenities, clawing at her face. But the girl was too strong for her. Hands gripped her wrists like steel bands and she found herself hurled back against the boards. Through the tears of rage and self-pity she whispered: 'But why? Why?'
'For a cause worth dying for. There aren't many of those.'
'Nothing's worth dying for, except maybe another person, someone you love. I'd die for Timmy.'
'That's not a cause, that's sentimentality.'