the Council center, and Laura’s telephoning had come at precisely the right moment to lure him. He had let the moment dominate his better judgment. Now he had to eat some dreadful meal in a restaurant kept dark because they didn’t want you to see the dirt, and into the bargain he had to be hustled by this shopgirl. Peterson grimaced, certain she wouldn’t see him in this light. Well, at least he was going to get a meal out of it; fuel for the work that was certain to come. And he did need a break from Sir Martin. “Do you have a place nearby?” he asked.
“Yes, in Banbury Road. A closet, nearly, I’m afraid.”
“I’m sure I won’t mind it.” He smiled in the darkness.
CHAPTER THIRTY-ONE
Markham spread his working papers out on the narrow little drop tray the airline provided. He had hours of boring Atlantic crossing ahead, jammed in next to the window. Cathy Wickham’s equations swam before him, tensor indices beckoning to be turned this way and that, a dense notation compacted with promise.
“Lunch, sir,” the professionally blank-faced steward muttered. This echo of politeness was to put a gloss on his casual dumping of a cardboard package on the drop table. Markham pried open the wedged boards. A rain of packets thumped down among his papers. They were the now-universal, easy-for-them modular units of food. He unwrapped one and found it to be the obligatory rubber chicken. He bit in reluctantly. Pasty, sour stuff. The only saving grace in this was the absence of plastic packaging, he thought. The bombing of the Saudi fields several years ago had brought an abrupt end to that, and a return to humble cardboard. The pulpy gray surface of the package recalled his boyhood, before hydrocarbons ruled the world. The humanizing side of paper containers was the simple fact that they accepted the touch of a pen, would carry a message; plastic’s sheen rejected the imprint of its temporary users. Idly, he jotted the new quantum field equations on the lunchbox. The elegant epsilons and deltas made their stately march across the UNITED AIRLINES block letters. He chewed absently. Time passed. Markham saw a way to separate the tensor elements into several reduced equations. With descending strokes he paired off field components. He jotted side calculations to check himself. Other passengers moved in the distance. In a while the five new equations lay aslant on the ribbing of cardboard. Three he suspected were old friends: the Einstein equations, with modifications for quantum effects when the length scale became small enough. These were well known. The other two seemed to imply more. A deeper sense of the quantum effects added a fresh term here, a tangle of tensors there. There seemed no way to reduce the system further. Markham tapped idly at them with his pen, frowning.
“Say, give-a!” the man next to him cried out. Markham peered out his window. An immense cloud, sulfurous yellow and veined with orange, hung ahead of them. “First I’ve seen,” the man said excitedly. Markham wondered if the pilot would fly through it. In seconds the window was hazed by strands of cloud and Markham realized that they were already passing through a lower segment of the yellow mass ahead. Fresh weight tugged him down; the plane tilted to rise.
“Right ahead of us, folks, is one of those clouds we’ve been hearing about. I’m taking us over it, for a better look.”
This explanation seemed transparently false to Markham. Pilots didn’t change altitude for a lark. The cloud seemed gravid and somehow more solid than the fluffy white cumulus around it. Threads of a coiling, dark blue wound through its cap, giving it a domed profile.
Markham murmured something and went back to his papers. He copied the new equations off the cardboard and studied them, trying to screen out the thin, high wail of the engines. An engineer had once told him the new generation of superfast engines screamed at unbearable levels. Rockwell International had had to go into cost overrun to blunt the jagged spikes of sound. Six months had been spent to bury the screech in a reassuring bass blanket, so the warm, ticketed bodies carried inside would remain woozy and complacent in the metallic grasp. Well, it didn’t work for him. He had always been noise-sensitive. He found the earplugs in the flap compartment in front of him and inserted them. A blanket sealed him in. The only remnant of the engine scream was