Harkness was standing, drawn unconsciously to his full height. He looked down upon the other man. All anger had gone from his face; he seemed only appraising the individual before him.

"The trouble with you people," he said, "is that you are living in the past--way back about nineteen fourteen, when might made right--sometimes."

He continued to look squarely into the other's eyes, but his lips set firmly, and his voice was hard and decisive.

"But," he continued, "I am not here to educate you, nor to deal with you. Any further negotiations will be through my counsellors. And now I will trouble you to return me to the city. We are through with this."

Herr Schwartzmann's heavy face drew into lines of sardonic humor. "Not quite through," he said; "and you are not returning to the city." He drew a paper from his desk.

"I antic.i.p.ated some such _verdammpt_ foolishness from you. You see this? It is a contract; a release, a transfer of all your interests in Harkness, Incorporated. It needs only your signature, and that will be supplied. No one will question it when we are done: the very ink in the stylus you carry will be duplicated. For the last time, I repeat my offer; I am patient with you. Sign this, and keep all else that you have. Refuse, and--"

"Yes?" Harkness inquired.

"And we will sign for you--a forgery that will never be detected. And as for you, your body will be found--a suicide! You will leave a letter: we will attend to all that. Herr Harkness will have found this misfortune unbearable.... We shall be very sad!" His heavy smile grew into derisive laughter.

"I am still patient, and kind," he added. "I give you twenty-four hours to think it over."

A touch of a b.u.t.ton on his desk summoned the man who had brought Harkness there. "Herr Harkness is in your charge," were the instructions to the one who stood stiffly at attention. "He is not to leave this place. Is it understood?"

As he was ushered from the room, Walter Harkness also understood, and he knew that this was no idle threat. He had heard ugly rumors of Herr Schwartzmann and his methods. One man, he knew, had dared to oppose him--and that man had gone suddenly insane. A touch of a needle, it was whispered....

There had been other rumors; Schwartzmann got what he wanted; his financial backing was enormous. And now he would bring his ruthless methods to America. But there he needed the Harkness standing, the reputation for probity--and Walter Harkness was grimly resolved that they should never buy it from him. But the problem must be faced, and the answer found, if answer there was, in twenty-four hours.

An amazing state of affairs in a modern world! He stood meditating upon his situation in a great, high-ceilinged room. A bed stood in a corner, and other furniture marked the room as belonging to an earlier time. Even mechanical weather-control was wanting; one must open the windows, Harkness found, to get cooling air.

He stood at the open window and saw storm clouds blowing up swiftly. They blotted the stars from the night sky; they swept black and ominous overhead, and seemed to touch the giant trees that whipped their branches in the wind. But he was thinking not at all of the storm, and only of the fact that this room where he stood must be directly above the one where Schwartzmann was seated. Schwartzmann--who would put an end to his life as casually as he would bring down a squirrel from one of those trees!

And again he thought: "Twenty-four hours!... Why hours? Why not minutes?... Whatever must be done he must do now. And might made right: it was the only way to meet this unscrupulous foreign scoundrel."

A wind-tossed branch lashed at him. On the ground below he saw the man who had brought him, posting another as a guard. They glanced up at his window. There would be no escape there.

And yet the branch seemed beckoning. He caught it when again it whipped toward him, and, without any definite plan, he lashed it fast with a velvet cord from the window drapes.

But his thoughts came back to the room. He s.n.a.t.c.hed suddenly at the covers of the bed. What were the sheets?--fabric as old-fashioned as the room, or were they cellulex? The touch of the soft fabric rea.s.sured him: it was as soft as though woven of spider's web, and strong as fibres of steel.

It took all of his strength to rip it into strips, but it was a matter of minutes, only, until he had a rope that would bear his weight. The storm had broken; the black clouds let loose a deluge of water that drove in at the window. If only the window below was still open!

He found the middle of his rope, looped it over a post of the bed, and, with both strands in his grasp, let himself out and over the dripping sill.

Would the guard see him, or had he taken to shelter? Harkness did not pause to look. He left the branch tied fast. "A squirrel in a tree,"

he thought: the branch would mislead them. His feet found the window-sill one story below. He drew himself into the room and let loose of one strand of his rope as he entered.

Schwartzmann was gone. Harkness, with the bundle of wet fabric in his hands, glanced quickly about. A door stood open--it was a closet--and the rain-drenched man was hidden there an instant later. But he stepped most carefully across the floor and touched his wet shoes only to the rugs where their print was lost. And he held himself breathlessly silent as he heard the volley of gutteral curses that marked the return of Herr Schwartzmann some minutes later.

"Imbecile!" Schwartzmann shouted above the crash of the closing window. "_Dumkopff!_ You have let him escape.

"Give me your pistol!" Harkness glimpsed the figure of his recent guard. "Get another for yourself--find him!--shoot him down! A little lead and detonite will end this foolishness!"

From his hiding place Harkness saw the bulky figure of Schwartzmann, who made as if to follow where the other man had gone. The pistol was in his hand. Walt Harkness knew all too well what that meant. The tiny grain of detonite in the end of each leaden ball was the same terrible explosive that drove their ships: it would tear him to pieces. And he had to get this man.

He was tensed for a spring as Schwartzmann paused. From the wall beyond him a red light was flashing; a crystal flamed forth with the intense glare of a thousand fires. It checked the curses on the other's thick lips; it froze Harkness to a rigid statue in the darkness of his little room.

An emergency flash broadcast over the world! It meant that the News Service had been commandeered. This flashing signal was calling to the peoples of the earth!

What catastrophe did this herald? Had it to do with the Dark Moon? Not since the uprising of the Mole-men, those creatures who had spewed forth from the inner world, had the fiery crystal called!... It seemed to Harkness that Schwartzmann was hours in reaching the switch.... A voice came shouting into the room:

"By order of the Stratosphere Control Board," it commanded, "all traffic is forbidden above the forty level. Liners take warning.

Descend at once."

Over and over it repeated the command--an order whose authority could not be disregarded. In his inner vision Harkness saw the tumult in the skies, the swift dropping of huge liners and great carriers of fast freight, the scurrying of other craft to give clearance to these monsters whose terrific speed must be slowly checked. But why? What had happened? What could warrant such disruption of the traffic of the world? His tensed muscles were aching unheeded; his sense of feeling seemed lost, so intently was he waiting for some further word.

"Emergency news report," said another voice, and Harkness strained every faculty to hear. "Highline ships attacked by unknown foe. Three pa.s.senger carriers of the Northpolar Short Line reported crashed.

Incomplete warnings from their commanders indicate they were attacked.

Patrol ship has spotted one crash. They have landed beside it and are reporting....

"The report is in; it is almost beyond belief. They say the liner is empty, that no human body, alive or dead, is in the ship. She was stripped of crew and pa.s.sengers in the air.

"We await confirmation. Danger apparently centered over arctic regions, but traffic has been ordered from all upper levels--"

The voice that had been held rigidly to the usual calm clarity of an official announcer became suddenly high-pitched and vibrant. "Stand by!" it shouted. "An S. O. S. is coming in. We will put it through our amplifiers; give it to you direct!"

The newscaster crackled and hissed: they were waiving all technical niceties at R. N. Headquarters, Harkness knew. The next voice came clearly, though a trifle faint.

"Air Patrol! Help! Position eighty-two--fourteen north, ninety-three--twenty east--Superliner Number 87-G, flying at R. A. plus seven. We are attacked!--Air Patrol!--Air Patrol!--Eighty-two--fourteen north, ninety-three--twenty--"

The voice that was repeating the position was lost in a pandemonium of cries. Then--

"Monsters!" the voice was shouting. "They have seized the ship! They are tearing at our ports--" A hissing crash ended in silence....

"Tearing at our ports!" Harkness was filled with a blinding nausea as he sensed what had come with the crash. The opening ports--the out-rush of air released to the thin atmosphere of those upper levels!

Earth pressure within the cabins of the ship; then in an instant--none! Every man, every woman and child on the giant craft, had died instantly!

The announcer had resumed, but above the sound was a guttural voice that shouted hoa.r.s.ely in accents of dismay. "Eighty-seven-G!"

Schwartzmann was exclaiming, "--Mein Gott! It iss our own ship, the Alaskan! Our crack flyer!"

Harkness heard him but an instant, for another thought was hammering at his brain. The position!--the ship's position!--it was almost above his experimental plant! And Chet was there, and the ship.... What had Chet said? He would fly it in two days--and this was the second day!

Chet had no radio-news; no instrument had been installed in the shop; they had depended upon the one in Harkness' own ship. And now--