"I'm sure you will. And now, to go into greater detail...."
Virgil Samms had to be sure of his facts. More than that, he had to be able to prove them; not merely to the satisfaction of a law-enforcement officer, but beyond any reasonable doubt of the hardest-headed member of a cynical and skeptical jury. Wherefore Jack Kinnison and Mase Northrop took up the thionite trail at the exact point where, each trip, George Olmstead had had to abandon it; in the atmosphere of Cavenda. And fortunately, not too much preparation was required.
Cavenda was, as has been intimated, a primitive world. Its native people, humanoid in type, had developed a culture approximating in some respects that of the North American Indian at about the time of Columbus, in others that of the ancient Nomads of Araby. Thus a couple of wandering natives, unrecognizable under their dirty stormproof blankets and their scarcely thinner layers of grease and grime, watched impassively, incuriously, while a box floated pendant from its parachute from sky to ground. Mounted upon their uncouth steeds, they followed that box when it was hauled to the white man's village. Unlike many of the other natives, these two did not shuffle into that village, to lean silently against a rock or a wall awaiting their turns to exchange a few hours of simple labor for a container of a new and highly potent beverage. They did, however, keep themselves constantly and minutely informed as to everything these strange, devil-ridden white men did. One of these pseudo-natives wandered off into the wilderness two or three days before the huge thing-which-flies-without-wings left ground; the other immediately afterward.
Thus the departure of the space-ship from Cavenda was recorded, as was its arrival at Eridan. It had been extremely difficult for the Patrol's engineers to devise ways and means of tracing that ship from departure to arrival without exciting suspicion, but it had not proved impossible.
And Jack Kinnison, lounging idly and elegantly in the concourse of Danopolis Spaceport, seethed imperceptibly. Having swallowed a tiny Service Special capsule that morning, he knew that he had been under continuous spy-ray inspection for over two hours. He had not given himself away—practically everybody screened their inside coat pockets and hip pockets, and the cat-whisker lead from Lens to leg simply could not be seen—but for all the good they were doing him his ultra-instruments might just as well have been back on Tellus.
"Mase!" he sent, with no change whatever in the vapid expression then on his face. "I'm still covered. Are you?"
"Covered!" the answering thought was a snort. "They're covering me like water covers a submarine!"
"Keep tuned. I'll call Spud. Spud!"
"Come in, Jack." Conway Costigan, alone now in the sanctum of Department Q, did not seem to be busy, but he was.