But Kashtanov's thoughts were elsewhere. Peering hard at the chart, he said:
"I have a minute to get clear, eh? Well, I can do that; but won't the water sweeping through from Gatun Lake after the spillway is wrecked catch me?"
"No. You run up the hill the spillway channel is cut through; it iss high ground, and the golf course iss on high ground. No one will see you coming or going, naturally, and the box iss not big enough to be noticed at night. The noise of its equalizers will be covered by the water coming through the spillway. It iss—what they say?—fool-proof. You cannot fail, Kashtanov. And—" he broke into swift-flowing, liquid Russian, his swarthy face lighting up, his arms waving, one of them slapping the other's back.
"Stop the dramatics," said Kashtanov, "and speak in English. I've worked so long in America, Russian is hard to understand. Time to begin?"
Istafiev glanced at a watch on his wrist. "A few minutes. Look you." He went to a side locker in the room, opened it, hauled out with both hands a box of plain dull metal, and put it on the table. It was larger than the one Chris Travers had seen on the ZX-1, but otherwise similar.
"A double charge of nitro-lanarline iss in this," murmured Istafiev complacently. "Imagine it, when released! You know the working well, do you not? Yess. Well, I put it in the plane, ready." He stepped to the hut's single door and passed out. Through it Chris could see the tiny clearing, dark under the camouflaged framework, now closed once more; the light from the hut showed him the wings of the helicopter-plane standing there. He heard, moreover, the sound of a shovel from somewhere, and knew that a lonely grave was being dug in the wilderness. Then Istafiev shouted:
"Grigory! That grave, make it wide, make room for two." He came back and peered sidewise at Chris. "Not conscious yet?" A foot thudded into the American's side. "No. Well, I see to him when you are gone, Kashtanov. Yess, thick darkness iss here. Time to begin. Take off your clothes."
Chris was now keenly alert, poised, ready for any chance that might come. The odds were two or three to one, and a gun into the bargain, but the stakes were higher than any ever played for before; and a stroke had to be made, no matter how seemingly hopeless. Through his lashes he watched, turned things over in his mind—and something leaped within him when he saw Kashtanov unbuckle the gun around his waist and lay it down, meanwhile taking off the clothes he was wearing: and when he heard the question which followed, and Istafiev's answer.