Two minutes later, the pain began. A stroke of heat like lightning that seemed to sear the brains in their skulls. They screamed, all except Scone, who grew pale and clutched the edge of the control panel. But the dishes were, for the next two minutes, on automatic, unaffected by their pilots' condition.

And then, just as suddenly as it had started, the pain died. They were left shaking and sick, but they knew they would not feel that unbearable agony again.

"Flutter your craft as if it's going out of control," said Scone. "Make it seem we're crashing into the entrance to the canyon."

Scone himself put the lead destroyer through the simulation of a craft with a pain-crazed pilot at the controls. The others followed his maneuvers, and they slipped into the canyon.

From over the top of the cliff to their left rose a glare that would have been intolerable if the plastic over the portholes had not automatically polarized to dim the brightness.


Broward, looking through a screen which showed the view to the rear, cried out. Not because of the light from the atomic bomb which had exploded on the other side of the cliff. He yelled because the top of the Zemlya had also lit up. And he knew in that second what had happened. The light did not come from the warhead, for an extremely high mountain was between the huge globe and the blast. If the upper region of the Zemlya glowed, it was because a tongue from a Russian ship had brushed against it.

It must have been an accident, for the Russians surely had no wish to wreck the Zemlya. If they defeated the USAF, they could recapture the globe with no trouble.

"My God, she's falling!" yelled Broward. "Out of control!"