‘You’re prickly tonight. What is it?’
‘Do you wish I wasn’t here? Do you want me to leave? I can go if you want.’
‘I haven’t been able to concentrate, mate. I was worried about you.
Something was on your mind this morning and I didn’t know what it was. I wanted to see if you were okay.’
Toby did not type anything for a few moments.
‘I said I’m not going to stop you doing anything on this machine.’
In Toby’s room at Cotswold House the screen flickered into life with the warning:
Toby tapped out words for his father.
Reduced back to his professional role as a watcher, Harrigan found himself excluded from the electronic scenario. This hurt him much more than he could have expected. He wondered how images as crude as these and voices so tinny had this kind of power.
‘She can’t want you to walk any more than I do, Toby,’ he said in his neutral voice.
Within the confines of the monitor, Lucy led Toby past dirty rooms towards a distant doorway. A man and a woman followed them, grinning, carrying knives dripping with lurid fake blood. The corridor was truncated and the door opened. The Firewall stepped out into the open sky with Toby and together they went soaring among the glittering stars while the house burst into flames below them.
‘Can you stop it?’ Harrigan asked. ‘Can you roll it back so I can see that again?’
As the whole city descended into devastation, an angel in gun-blue armour came to the Firewall and handed her a book. Its pages had been cut out and, instead of words, a gun was stored between the covers.
The angel gave her the weapon and said to her, ‘Knowledge is bitter.’
‘I know that now,’ Lucy said aloud, alone in her room, immersed in her images. ‘I know what they mean now, when they say knowledge is bitter. Turtle, you don’t understand — I did have to do what I did. I just have to be strong enough to live with it. You have to forgive me for it.’
On the screen, humans became monsters prowling the earth, murdering the living, eating corpses. The Firewall roamed amongst them, shooting them down. As they died, they evaporated into particles of light. In the end, there was nothing left other than an empty wasteland and the quiet sound of the wind, moaning like the voices of young children, fading into silence.
In her room, Lucy was working. She was building a new city in the middle of this empty place, a vision of towers, fountains and trees. A garden, rows of terraces with rhododendrons and camellias, azaleas and gardenias, sloping down to the edge of a eucalyptus forest. Out of the commands of computer language she was fabricating a place to be safe and happy, somewhere that was home.
In Toby’s room, the screen was frozen on the image of Dr Agnes Liu dying in a backstreet. Harrigan sat staring at it for some moments.
‘How long have you known about this website?’ he asked.
‘Has that picture been there all that time?’
‘You didn’t tell anyone?’
‘Do you know anything about this person at all? Her name, where she lives, anything?’
‘Like you and me? You know what she’s done and you say that.
She’s a murderer, Toby.’
‘Someone like this comes to you from out of nowhere on the Net and you trust her with everything about you. She knows how to get under your skin, doesn’t she? How do you know she really did this?’
‘She told you. She told you and you didn’t tell me and you didn’t tell anyone else?’
‘Does she know who I am?’
‘How do you know that? You’ve got my picture all over your website with ‘my dad’ written underneath it. I’ve been on TV tonight, and the night before. I’m just as likely to end up in the newspapers or on the Net tomorrow. She’s going to see me one of these days if she hasn’t already. How’s she going to react to you then?’
‘No, you won’t, mate. What you’ll do is stay out of this. This is police business, not some game. You can talk to her if you want but we’ll be watching everything you say to her. And why? Because I have to do that. I have to authorise people I’d prefer to know nothing about my private life to come and crawl all over your computer and talk to you. I’ve got to prove that you weren’t an accessory after the fact and that I don’t have a conflict of interest. Why didn’t you tell me as soon as you knew about this?’
‘What am I going to do? I am going to trace her, Toby. And when I do, I’m going to put her away in gaol for the next thirty years or so for what she’s done.’
Harrigan stood up.
‘She’s not your friend. She’s a murderer. She’s used you, Toby, and you’ve let her.’
Toby turned off his computer; the room became silent as the sound of the machine died. There was a shudder through Toby’s body, he uttered a strange sound. Toby was crying. Harrigan’s son never cried.
