"I'm preparing a report for the President. I hope to have it for him by noon." He glanced at his watch. "I want to verify with you everything that goes into it."


The smoke made Julia dizzy. She cleared her brain. It was a relief to hear someone else talking for a change.

"... we're preparing an atomic rocket to intercept their space station," he said. "I understand from this report that your mutant powers aren't infinite. It says in here somewhere that it would be impossible to stop by, by teleportation you call it, don't you? an object as large as a rocket?"

"It's mostly a question of inertia. There's a mass-speed-time ratio involved. The greater the first two, the more time required to divert the missile from its path. The mass-speed must be sufficient to create a greater diversion period than exists between the time of detection and the time of impact."

"You would say that the rocket could get through?"

"If the same rule holds for the aliens as for us, I don't think they would have time to teleport it away."

"That's what I wanted."

"Just a minute, though. How long will it take you to complete it?"

"Give us another week," the general said. "That's one of the things I wanted to see you about. It will take Doctor Norvel longer than that to plot the orbit of the station. I want you to plot that orbit for us—"