"You're going to have a second chance, so consider yourself lucky. We know you aren't another plant of our enemies, a fact that saves your neck. Do you have anything to add to your story?"
"No, sir." He was not adding that "sir" to curry any favor; it came naturally when one answered Kelgarries.
"But you have some questions?"
Ross met that with the truth. "A lot of them."
"Why don't you ask them?"
Ross smiled thinly, an expression far removed and years older than his bashful boy's grin when playing shy. "A wise guy doesn't spill his ignorance. He uses his eyes and ears and keeps his trap shut—"
"And goes off half cocked as a result . . ." the major added. "I don't think you would have enjoyed the company of Kurt's paymaster."
"I didn't know about him then—not when I left here."
"Yes, and when you discovered the truth, you took steps. Why?" For the first time there was a trace of feeling in the major's voice.
"Because I don't like the set-up on his side of the fence."
"That single fact has saved your neck this time, Murdock. Step out of line once more, and nothing will help you. But just so we won't have to worry about that, suppose you ask a few of those questions."
"How much of what Kurt fed me is the truth?" Ross blurted out. "I mean all the stuff about shooting back in time."
"All of it." The major said it so quietly that it carried complete conviction.
"But why—how—?"
"You have us on the spot, Murdock. Because of your little expedition, we have to tell you more now than we tell any of our men before the final briefing. Listen, and forget all of it except what applies to the job at hand.
"Once Greater Russia emerged from the wreckage of the old Soviet Union and started gobbling up its neighbors, joint space ventures were out of the question. But they didn't start a new space race either. Not that we've sent men to the moon ourselves—" the major's voice tightened "—in more years than I care to count. So why weren't they interested in taking the high ground?"
Ross stared back blankly. Did "high ground" mean space?
"Any discovery in science comes about by steps. It can be traced through those steps by another scientist. But suppose you were confronted by a result which apparently had been produced without any preliminaries. What would you guess had happened?"
Ross stared at the major. Although he didn't see what all this had to do with time-jumping, he sensed that Kelgarries was waiting for a serious answer, that somehow Ross would be judged by his reply.
"Either that the steps were kept strictly secret," he said slowly, "or that the result didn't rightfully belong to the man who said he discovered it."
For the first time the major regarded him with approval. "Suppose this discovery was vital to your life—what would you do?"
"Try to find the source!"
"There you have it! Within the past five years our friends across the way have come up with three such discoveries. One we were able to trace, duplicate, and use, with a few refinements of our own. The other two remain rootless; yet they are linked with the first. We are now attempting to solve that problem, and the time grows late. For some reason, though the Russians now have their super, super gadgets, they are not yet ready to use them. Sometimes the things work, and sometimes they fail. Everything points to the fact that the Russians are now experimenting with discoveries which are not actually their own—"
"Where did they get them? From another world?" Ross's imagination came to life. Had a successful space voyage been kept secret? Had contact been made with another intelligent race?
"In a way it's another world, but the world of time—not space. Seven years ago we got a man out of Moscow. He was almost dead, but he lived long enough to tape some amazing data, so wild it was almost dismissed as the ravings of delirium. But we didn't dare disregard any hints from the other side. So the recording was turned over to our scientists, who