He sipped his tea, trying to identify the herbs. Rosemary, possibly. The market stalls weren't particularly choosy what they ground up.

"Not a thing," Gabriel said.

He didn't show any disappointment. (Was there some alternative-universe Greg Mandel currently raging at her failure?) The answer did exist. Down one of those Tau lines was a future where he and Gabriel teamed up and successfully tracked down whoever had attacked Philip Evans. But for the moment the distance was too great. She wouldn't stretch herself that far, not even for friendship's sake.

"Will you help?" he asked.

She looked dreadfully unhappy.

"No big visions," he reassured her. "Just cross out probabilities for me, eliminate suspects and dead ends. That kind of thing. I've got to interview Event Horizon's giga-conductor team tomorrow, that's over two hundred people. Then I'll probably wind up having to go through the security division's headquarters staff for the mole. My espersense can't last out that long. Twenty's my limit. And that hurts bad enough."

"All right," she whispered.

He held up the card Morgan Walshaw had given him. Gabriel stared at it, mesmerised. He could sense the trepidation mounting in her mind. She wanted to soar into the future and find out what it meant. The larger, ever-present dread held her back.

"Afterwards," he said, "succeed or fail, I'm going to pay for your operation. That's your fee, Gabriel, that gland is coming out."

She looked at him incredulously, her mind spilling out hope. Her eyes watered. "I can't," she moaned.

"Bullshit," he said softly. "I'm the one who can't, I can keep my demons at bay. You can't. You think I'm blind to what the gland has done to you? You're getting out, Gabriel, no more living under the pendulum."

Tears began to roll down her cheeks, smearing the makeup. She twisted round to avoid his eyes, looking out of the window.

He put his hands on the nape of her neck, feeling the solid knots of muscle, massaging gently. "I hate seeing you like this. You don't live; you crawl from day to day. It's a miserable existence. Too timid to walk under the open sky in case a lightning bolt hits you. It's got to stop, Gabriel. No messing."

"You bastard, Mandel. I'd be nothing without the gland, nothing."

Outside, the sun shone down on the school's old chapel on the other side of the garden, its pale stone gleaming like burnished yellow topaz.

"You'd be human."

"Bastard. Prize bastard."

"Truthful bastard."

He turned her to face him. She was suddenly busy with a lace handkerchief, wiping away tears, making an even worse hash of the make-up.

"Tomorrow," he said. "We'll start with the Event Horizon Astronautics Institute, OK?"

She looked confused for a moment, then gathered her thoughts, entering into that familiar trance for a few seconds. "Yes, that's a good start."

"Right, then. I'll pick you up at nine o'clock."

"Fine." She sniffed hard, then blew into the handkerchief.