For some time even the liquid level seemed to reach a steady state, though none of the watchers could understand why. Later they decided that the spreading pool had melted its way into the still-liquid reservoir under the Kwembly, which took fully fifteen minutes to evaporate. By the end of that time, cobbles from the river bottom began to show their tops above the simmering water, and the problem of turning the power unit off before another length of wire was destroyed suddenly occurred to Dondragmer.

He knew now that there was no danger of the power unit blowing up; however, several inches of the wire had already melted away, and there was going to be trouble restoring the refrigerator to service. This situation should not be allowed to get any worse, which it would if more metal were lost. Now, as the water level reached the cobbles and the wire ceased to follow the melting ice downward, the captain suddenly wondered wheter he could get out to the controls fast enough to prevent the sort of shut-off which had occurred before. He wasted no time mentally blasting the scientists for not attaching a cord to the appropriate control; he hadn’t thought of it in time either.

He donned his suit again and went out through the bridge lock. Here the curve of the hull hid the pool from view, and he began to make his way down the holdfasts as rapidly as he could in the poor visibility. As he went, he hooted urgently to Borndender, “Don’t let the write melt again! Turn off the power!”

An answering, but wordless, bellow told him that he had been heard, but no other information came through the white blankness. He continued to grope his way downward, finally reaching the bottom of the hull curve. Below him, separated from his level by the thickness of the mattress and two thirds the height of the trucks, was the gently steaming surface of the water. It was not, of course, actively boiling at this pressure; but it was hot even by human standards, and the captain had no illusions about the ability of an airsuit to protect him from it. It occurred to him, rather later, that there was an excellent chance that he had just cooked his two missing helmsmen to death, but this was a passing thought; there was work to be done.

The power box lay well aft of his present position, but the nearest surface on which he could walk had to be forward. Either way there was going to be trouble reaching the unit, now presumably well surrounded by hot water; but if jumping were going to be necessary, the hull holdfasts were about the poorest possible takeoff point. Dondragmer went forward.

This brought him into clear air almost at once, and he saw that his two men were gone. Presumably they had started around the far side of the pool in the hope of carrying out his order. The captain continued forward, and in another yard or two found it possible top descend to solid ice. He did so, and hastened on what he hoped was the trail of his men.

He had to slow down almost at once, however, as his course brought him back into the ice fog. He was too close to the edge of the pool to take chances. As he went he called repeatedly, and was reassured to hear each hoot answered by another. At least, his men had not yet fallen in.

He caught up with them almost under the cruise’s stern, having walked entirely around the part of the pool not bounded by the hull. None of them had accomplished anything; the power unit was not only out of reach but out of sigh. Jumping would have been utter lunacy, even if Mesklinites normally tended to think such a thing. Borndender and his assistant had not, and the idea had only occurred to Dondragmer because of his unusual experience in Mesklin’s low-gravity equatorial zone long before.

But there could not be much more time. Looking over the edge of the ice, the three could catch glimpses of the rounded tops of the rocks, separated by water surfaces which narrowed as they watched. The wire must be practically out of water by now; chance alone would not have it settle between the stones to a point much lower than their average height, and the protecting water was already there. The captain had been weighing the various risks for minutes; without further hesitation, and without issuing any orders, he slipped over the edge and dropped two feet to the top of one of the boulders.

It was the energy equivalent of an eight-story fall on Earth, and even the Mesklinite was jolted. However, he retained he self-command. A single hoot told those above he had survived without serious injury, and warned them against following in case pride might have furnished an impulse which intelligence certainly would not. The captain, with that order issued, relegated the scientist to the back of his mind and concentrated on the next step.

The nearest rock with enough exposed area to accommodate him was two feet — well over a body length — away, but was at least visible. Better still, another one only slightly off the line to it expose a square inch or so of its surface; and two seconds after analyzing this situation, Dondragmer was two feet closer to the power box and looking for another stopping point. The lone square inch of the stepping stone had been touched by perhaps a dozen feet as the red-and-black length of his body had ricocheted from it to the second rock.

The next stage was more difficult. It was harder to be sure which way to go, since the hull which had been furnished orientation was now barely visible also, there were no more large surfaces as close as the one from which he had come. He hesitated, looking and planning; but before he reached a decision the question was resolved for him. The grumbling sound which had gone on for so many minutes as water exploded into steam against the hot wire and almost instantly collapses again under Dhrawn’s atmospheric pressure abruptly ceased, and Dondragmer knew that he was too late to save the metal. He relaxes immediately and waited where he was while the water cooled, the evaporation slowed, and the fog of ice crystals cleared away. He himself grew uncomfortably warm, and was more than once tempted to return the way he had come but the two-foot climb up an ice overhang with hot water at is foot, which would form part of the journey, made the temptation easy to resist. He waited.

He was still alive when the air cleared and crystals of ice began to grow around the edges of the rocks. He was some six feet from the power unit, and was able to reach it by a rather zigzag course over the cobbles once the way could be seen. He shut off the power controls, and only when that was done did he look around.

His two men had already made their way along the ice cliff to a point about the level with the original front bend of the wire; Dondragmer guessed that this must be where the metal had melted through this time.

In the other direction, under the bulking hull, was a black cavern where the Kwembly’s lights did not reach. The captain had no real wish to enter it; it was very likely that he would find the bodies of his two helmsmen there. His hesitation was observed from above.

“What’s he waiting there at the power box for?” muttered McDevitt. “Oh, I suppose the ice isn’t thick enough for him yet.”

‘That’s not all of it, I’d guess.” Benj’s tone made the meteorologist look sharply away from the screen.

“What’s the matter?” he asked.

“You must know what’s the matter. Beetch and his friend were under there. They must have been. How could they have gotten away from that hot water? I bet the captain only just thought of it — he’d never have let them use that way if he’d seen what would happen, any more than I would have.”

McDevitt thought rapidly; the boy wouldn’t be convinced, or even comforted, by anything but sounds reasoning, and McDevitt’s soundest reasoning suggested that Benj’s conclusion was probably right. However, he tried.