"I won't let him guess," Jim answered. "Tell him we'll go and show him--"

"I've told him, and he says only you are to go. He's suspicious. Say something quickly, Dent."

"Tell him," said Jim, "that I must have my two a.s.sistants and the lady. Tell him I may also need the help of some of his people. It requires many men to operate the machine."

Parrish translated, speaking in the Drilgo tongue, which was their only means of communication. The Atlantean considered. Then he spoke again.

"He says that we three men may go, but Lucille must be left behind,"

groaned Parrish.

"The answer is no," said Jim.

The old dignitary, who seemed somewhat crestfallen, departed with an expressive gesture. Jim and Parrish looked at each other.

"That's our end," groaned Parrish.

"No, he'll bite," answered Jim, with the first grin that had appeared on his countenance since their arrival. "Let's make our plans quickly.

We must contrive to get Lucille inside the machine, under the pretense of a.s.sisting with the mechanism. And Cain, of course," he added, glancing at the goggly-eyed Drilgo. "You do your best to locate the starting mechanism, Parrish, and signal me the moment you're ready.

We'll both leap in, and the four of us will sail--G.o.d, I don't care where we sail to, so long as we get away from here! Into eternity, if need be. But I hope it's Long Island!"

Back came the dignitary with two of the guards. Smiling at Jim, he indicated by signs that the three others might accompany him. The Atlanteans had bitten, as Jim had forecast.

The four proceeded along the hall and over the tongue of flooring.

This time the force that had previously controlled their movements was not in action. At the farther end of the bridge they saw the group of dignitaries gathered about the Atom Smasher, examining it curiously.

Over their heads the hooked arms of the hideous G.o.ds were raised. The Eye was darkened, as if with a curtain, and through the gla.s.s roof, high overhead, the sunlight streamed down upon the empty amphitheatre.

In spite of their smiles, the dignitaries of Atlantis were very much on the alert, as their tense att.i.tudes denoted. Two more guards had appeared, and Jim saw that they were uncovering some apparatus at the base of the Eye. They were swinging a camera-like object toward him, its lens focused upon the Atom Smasher. It was not difficult to understand what was in the minds of the Atlanteans. The dignitaries were uneasy and mistrustful, and at the first suspicion of treachery they meant to loose the blue-white Ray contained in the apparatus, and blow the Atom Smasher and the group about it to destruction.

Jim intercepted a sign from Parrish, indicating that he was to make pretense of a.s.sisting him. He bent over the machine, Lucille beside him. Parrish was busily examining the wheels and levers. He was adjusting the thumbscrews, moving the needles along the dials.

One of the Atlanteans spoke, and Cain translated into "Drilgo" for Parrish's benefit. Parrish answered. Then, without raising his head, the old man said quietly, "I've located the starting lever, Dent. You and Lucille get inside quickly and pretend you're doing something to the machinery."

They stepped over the bow of the boat and stood beside Parrish, who continued examining the wheels. "We mustn't forget Cain," whispered the girl to her father. "Oh, I hope he understands!"

But there was no direct evidence that Cain did understand, and Parrish dared not warn him in "Drilgo," for fear one of the Atlanteans might understand the language. Cain was standing close beside the boat. But he was not in the boat.

Again one of the Atlanteans shot a question at Parrish. Parrish beckoned to Cain, and awaited the translation. He answered.

Each moment was growing tenser. It was impossible that the Atlanteans could fail to understand what was being planned. The only saving chance was that they did not realize the possibilities of escape that the vessel offered. A full minute went by.

Suddenly Parrish raised his head. "I've got it fixed, I think, Dent,"

he said. "I'm going to count. When I reach 'three,' seize Cain and pull him aboard."

Jim nodded. The uneasiness was increasing. The guards at the camera-like object were each holding some sort of mechanical accessory in their hands. It looked like a small sphere of gla.s.s, and it connected with the apparatus by means of a hollow tube of fibre. Jim guessed that in an instant the Ray could be made to dart out of the lens. It would be quick work--as nearly as possible instantaneous work.

"Ready, Dent?" asked Parrish in an even voice. In this crisis the old man had become astonishingly calm. He seemed the calmest of the lot.

"One!"

Jim beckoned to Cain, who came toward him, his eyes goggling in inquiry.

"Two!"

Jim reached out and took Cain by the arm. There was a sharp question from the Atlantean who had spoken before.

"Three!"

With all his force Jim yanked Cain over the edge of the boat. The Drilgo stumbled and fell headlong with a howl of terror. But headlong--inside.

What happened was practically instantaneous. A sudden whir of the mechanism, a violet glow from the funnel, the smell of chlorine--a flash of blinding blue-white light. The Atlantean guards had fired--a quarter-second too late!

The thump, thump of the electrical discharge died away. The four were in the boat, whirling away through s.p.a.ce. Cain was rising to his knees, a woe-begone expression on his face. And there was a clean cut, with charred, black edges along one side of the boat, showing how near the Atlanteans had come to success.

The relief, after the hideous suspense of the past days, was almost too much for the three white people. "We're free, we're going back home!" cried Jim exultantly, as he caught Lucille in his arms. And she surrendered her lips to his, while the tears streamed down her checks.

Old Parrish, at the instrument board, looked up, smiling and chuckling. Even Cain, understanding that they were not to be hacked to bits with knives, gurgled and grinned all over his black face.

"How long will it take us to get back?" Jim asked Parrish after a while.

"I--I'm not quite sure, my boy," the old man replied. "You see--I haven't quite familiarized myself with the machine as yet."

"But we'll get back all right?" asked Jim.

"Well, we--we're headed in the right direction," answered Parrish.

"You see, my boy, it's rather an intricate table of logarithmic calculations that that scoundrel has pasted on this board. The great danger appears to be that of coming within the orbit of the giant planet Jupiter. Of course, I'm trying to keep within the orbit of the Earth, but there is a danger of being deflected onto Pallas, Ceres, or one of the smaller asteroids, and finding ourselves upon a rock in s.p.a.ce."

Jim and Lucille looked at Parrish in consternation. "But you don't have to leave the Earth, do you?" Jim asked.

"Unfortunately, it's pretty hard sticking to the Earth, my lad," said Parrish. "You see, Earth has moved a good many million miles through s.p.a.ce since the time of Atlantis."

But both Jim and Lucille noticed that Parrish was already speaking of Atlantis as if it was in the past. They drew a hopeful augury from that. And then there was nothing to do but resign themselves to that universal greyness--and to hope.

They noticed that Cain seemed to be watching Parrish's movements with unusual interest. The Neanderthal man seemed fascinated by the play of the dials, the whir of the wheels and gyroscopes.

"Are you setting a course, dad?" asked Lucille presently. "I mean, do you know just where we are?"

"To tell you the truth, my dear," answered her father, "I don't. I'm relying on some markings that Tode made on the chart--certain combinations of figures. G.o.d only knows where they'll take us to. But I'm hoping that by following them we shall find ourselves back on Long Island in the year 1930.

"No, that rascal could hardly have written down those figures to no purpose. They seem to me to comprise a course, both going and returning. But the calculations are very intricate, especially in the _time_ dimension. I've nearly reached the last row now. Then, we shall have arrived, or--we sha'n't."

Jim and Lucille sat down again. There was nothing that they could do.