'Just because I am reasonably adept at Disassociation. You won't see me when I choose to turn off.'

Dom shuddered despite himself. He had been with friends when they turned off after DA trips. It was a discipline only taught within the Sadhimist klatches. A man could go for days, weeks, without being affected by his emotions. One or two had told him it was a great sensation - there was a feeling of icy intellectual power, an ability to face problems shorn of the deceptive roccoco of feelings. Cool-heads, they were called. And then you turned off, and the backlash hit you, and you were glad to have an emotional friend around to unroll you with a crowbar and put you to bed - preferably with a bullet.

'How long have you been cool?' he asked.

'Since dinner. And for most of the last four months. But that doesn't matter. You seem to have mastered the technique, anyway. Without drugs, too.'

'Don't you believe it.'

'One thing I'll ask you to believe is that I never heard that second part of that cube before. He was talking to you. He did it—'

'He did it for the million-to-one chance. Oh, there's lots of ways. If he'd foreseen all this, he could have put a simple time delay into the cube. Lots of ways,' he said reassuringly.

'And what will you do now?' Dom tensed at the undertone in her voice.

'It seems I've got to discover the Joker's World. Half the history cubes say it never could have existed.'

'I can't let you,' said Joan.

'I'll be safe until I discover it. You heard the prediction.'

'Your father could have made another mistake. There might be a million-to-one chance, another one. Dom, someone is trying to kill you! That was the third attempt!'

Dom backed away as she walked forward.

'But the first time I dived into the marsh and I turned up forty kilometres away. The second time something saved enough of me from that thing - someone's trying to save me, too! I want to find out who, and why.'