"Well, you've forced the issue, and we've got to leave immediately. It may mean our death, but let's forget it. Now--how much of your air-units is left?"

"About two hours. I lost a lot through a leak."

Ken took half of his own store of the little cells from his helmet.

"I'll share mine. That'll give us both sixteen hours all told--in case we don't find your torpoon. You're sure they killed the whale in that trap? And you know the way?"

"I think so," said Beddoes excitedly. "You follow me."

"All right. On helmets, then."

The clasps were fastened down, cutting them off from spoken communication with each other. Ken took the hand-flash and crowbar and stuck them in his own belt, and both clumsy, grotesque figures splashed into the water, vanished beneath its surface and ducked under the shadowy body of the dead blubber-man.

Below, in the dim quarter-light, Ken peered out of the entrance to the cell chamber. The corridor seemed safe, there being only the distant colored streaks of light-fish, and occasionally even these disappeared, leaving heaped shadows in the darkened water. He nodded to Beddoes and boldly they began their flight.

Their progress was nerve-rackingly slow, in spite of their utmost exertions. The water that r.e.t.a.r.ded them at times contained unsuspected currents that destroyed their equilibrium and sent them stroking madly with both hands to regain it. Far different, this, than the swift, effortless swimming of the blubber-men. Their weighted feet stumbled often on the floor of the pa.s.sage, and several times they lost balance and fell towards the sides. Each time that this happened Ken was struck with the fear of ripping the fabric of his sea-suit. And all the time there was the apprehension of imminent discovery.

At last he saw Beddoes wave an arm and enter a dim cleft a few feet ahead in the left side of the wall. In turn he floundered through--and just in time. From around a bend in the corridor shortly ahead there came two blubber-men. In only a few seconds they would pa.s.s the niche the two humans had entered. Crowbar ready, Ken flattened himself against the sidewall, pulling his companion back with him. They waited.

The seal-men pa.s.sed by--two sleek, blubbery shapes, flipper-arms and legs weaving gracefully, bodies rolling slightly, eyes apparently directed ahead. Close!

They had escaped that time, but there was a disturbing thought in Ken's mind and in Beddoes' too, perhaps--as they resumed their slow-motion flight down the second corridor. "What if those two were going to visit us in the cell-chamber? Once they see the dead guard, h.e.l.l sure will start to pop!"

For a period that seemed to be measured in hours they fought their way forward through the r.e.t.a.r.ding pressure of the water. The corridor described a long curve. They were on the last stretch--and still no pursuit!

"If only the torp's there!" Ken kept exclaiming in his thoughts. "Just that!"

"If only the torp's there!..." Had they come the right way? He had to trust that to the memory of Beddoes. Beddoes, whose mind had clearly been affected by his seven-day nightmare.... He shook his head. He dared not doubt.

They increased their pace a little. Imagination stimulated their weary muscles. The _Narwhal_! Men of their own kind! Sun and air! Life again!

Ken could have shouted when he saw his partner stop and gesture excitedly before a dark spot in the wall. It could be nothing but the entrance to a trap.

He pressed forward, flicking on his flash and making sure by the water-waved beam it threw. But Beddoes was attending to some sight down the corridor; and suddenly he pointed in fright. The first torpooner looked in the indicated direction and saw what was meant.

Approaching was a wave of menacing brown-skinned bodies, streaming swiftly through the pa.s.sage several abreast. Their escape had been discovered. The blubber-men were coming.

At once Ken acted, pushing Chan into the narrow opening and scrambling after himself. They wormed along for several feet, till they emerged in a large dark chamber at the far end of which was a big circular entrance barred by three great pale stakes. They were certainly in a whale trap.

Rapidly Ken played his flash around, looking for the torp, but it was nowhere visible. To one side was an out-jutting rock with a niche beneath it. It was a promising place and he stumbled his way there, followed by the other.

It was then that a most peculiar feeling came over him, a feeling that was instantly a surge of panic. Something else was in the trap! His flash arced around and up, and what lay revealed in its ray caused cold shivers to run down the backs of the two men.

Above them, just over the three-toothed outer entrance, hung a black, sleek body, white-striped. Head-on it was, and motionless, eyeing them.

A killer whale--alive!--and poised for a lunge!

It barred the way to the outer entrance. They could not retrace their steps; already the round brown head of a blubber-men showed in the inner entrance. They were trapped, front and rear, and confronted by the deadliest animal in the sea.

A second they watched it, frozen immobile; then the whale's great body curved and its flukes went up, and by purest instinct the men dove for the niche at their feet. Head to head, they arrived in it, and just in time, for the great jaws of the killer barely missed their snap.

As the monster curved past, the swirling water of its pa.s.sage nearly dislodged the torpooners, and they made haste to jam themselves into the crevice as tightly as they dared for the safety of their suits.

The whale whipped around in a narrow circle and returned. Its pointed teeth gleamed as it snapped shut its jaws and muzzled its hard, wicked snout into Ken's ribs. Again it circled and streaked for the niche; and, helpless, Kenneth Torrance lay there as the beast tried to slide its head into it. He felt more of the terrifying nuzzling of the snout. But the creature could not dislodge him.

"Can't bring his teeth to bear," he muttered with a certain relief.

"Niche isn't high enough. We're safe, I guess, for a couple of minutes.

Unless the blubber-men come in and kill him like they did the one Chan followed last week."

For several minutes the sea-beast continued its frantic attempt to reach the two humans, and then its attacks became desultory. During one respite Ken managed to get up his flashlight and send its beam out over the floor--and what he discovered was the essence of irony. Directly opposite, on the floor by the wall, lay a familiar long slim shape, its stern tipped by rudder-planes and propeller, its metal flanks gleaming in the white ray. The torpoon. And utterly useless--a heartbreaking jest--unless they could reach it.

But a slight hope grew in the men at its discovery. They had come to the right trap, after all. Probably the whale had dislodged the sh.e.l.l from the wall with fluke-blows--possibly, too, the blows had sprung its seams and opened the engine-compartment to water....

Ken occupied himself with the problem of how to get to it. It held their only hope. But with all his racking his brains he could think of no way but to make a rush for it. If he could get inside, the torp, lying flat on the ground, would be reasonably safe from the killer until he could get it running.

Through the face-shields, he met his companion's eyes. The same decision had come to both.

There was a tiny s.p.a.ce of muddy floor between them. Kent doused it with light from the flash. In the mud, with a forefinger he slowly traced these words one at a time, rubbing each one out to make room for the next:

"I get torp. Kill whale with gun. Only way. I go. I senior. If fail, you try."

He looked at the other inquiringly. Vigorously, Chanley Beddoes shook his head.

He smoothed over the last word Ken had marked and in its place, in the same fashion, began:

"No. Draw lots. Only fair."

Yes, it was fair, and Ken knew it. He wrote:

"How?"

The second torpooner scrabbled around with his fingers. Presently he unearthed something, and apparently satisfied showed them to Ken. They were two pebbles, of different sizes. Beddoes pointed to the larger. He wrote:

"Large makes attempt."

Again Ken nodded. He marked:

"Other try keep killer's attention."

From time to time a long sleek body slid down to them and edged back and forth, striving its best to dislodge them with its blunt shout. After each failure it would return to a position just over the outer entrance.

At the proper moment Chanley Beddoes jumbled the pebbles in his cupped hands and laid two fists down on the pad.

Unhesitatingly, Ken placed a finger on the left one.

Beddoes turned and opened it. It was the smaller pebble.