"What next, Doctuh, suh?" asked the foreman.
"Get dynamite!" cried the doctor. "If I"m right, this underground cavern is entered by a tunnel. We"ll blast away this caved-in rock until we locate it."
Then occurred a strange thing.
"There is no need to go to that trouble, Dr. Bird," spoke a metallic voice, from nowhere, it seemed. The negroes looked at one another.
Picks and shovels fell from nerveless hands.
"Your guess about a tunnel is correct, Doctor," went on the Voice.
"There is a tunnel leading away from the spot where you are, but to find the end would be useless to you. I have prepared for that."
From the blacks came a low moan of fear.
"Ha"nts!" cried one of them. The cry was taken up and spread into a rolling chorus of fear. With one accord they dropped their tools and stampeded in a mad rush toward the dangling ropes. Carnes sprang forward to stop them.
"Let them go, Carnes!" cried the doctor. "Their work is done for the present. Let"s locate that radio receiver."
"That also will be a useless search. Doctor," spoke up the Voice again. "I have perfected a transmitter which will send my voice through s.p.a.ce and make it audible without the aid of the clumsy apparatus you depend on. I am also able to see you through the miles of intervening rock without the aid of any instruments at your end."
"I presume that you can hear me as well?"
"Certainly, Doctor. To save you trouble--and I dislike to see you waste the efforts of your really good brain on minor problems--I will tell you that your surmise is correct. A tunnel does lead both to and from the place where you stand. It twists and turns so that even you would be puzzled to plot a general direction. You would have to follow it inch by inch. If you tried that, naturally I would cause it to collapse before you, or on top of you, if you got too close. Be content with what you have seen and seek a better way to trace me."
"Who are you, anyway?" blurted out Carnes.
"Is it possible that you do not know? Such is fame. I thought that at least my friend Mr. Carnes would suspect that Ivan Saranoff had done this."
"But you"re dead!" protested the detective. "We killed you when we destroyed your helicopter."
"You killed merely an a.s.sistant who had disobeyed my orders. Had I not decreed his death, he would be alive to-day. I could kill you as you stand there; you into nothingness; but I do not choose to do so--yet.
Other attempts I have made you have frustrated, but this time I shall succeed. I will inst.i.tute a reign of terror which will bring your rich, foolish country to its knees. Listen, while I give you a taste of my power. The city of Charleston is about to be destroyed."
A thunderous roaring filled the air. Crash followed crash in rapid succession. It sounded as though all the noise of the universe had been concentrated in the cavern. The earth shook and rocked like a restless sea. From above came cries of terror.
The three men in the cavern were thrown to the ground. Shaken by the fall and deafened by the tumult, they hung onto irregularities of the rock on which they lay. Gradually the tumult and the shaking subsided.
The cries from above became more apparent. Silence finally reigned in the cavern and the metallic Voice spoke again.
"Go back now and look at Charleston and you will see what to expect.
The rest of your cities will soon share the same fate. Beware of trying to trace my movements, for your lives are in the hollow of my hand."
The voice died away in silence. From the edge of the hole came a cry.
A Fort Moultrie officer was peering down at them.
"Are you all right down there?" he hailed.
"Right as hops," called Dr. Bird cheerfully. "What happened up above?"
"I don"t know, Doctor. There seems to be a lot of smoke and fire over in the direction of the city. I expect the quake shook them up a little this time. What shall we do now?"
"We"re ready to come up. First I"m going to send up a wheelbarrow full of yellow powder. Rig a crane to lift it, for it"s too heavy to try to hoist with ropes."
With the aid of Carnes and Dr. La.s.sen, Dr. Bird collected a few cubic inches of the yellow powder from the ridges in the rock. He made the wheelbarrow containing it fast to the wire cables of the crane and gave the signal. Slowly it was raised to the surface. When it had safely reached there he turned to his companions.
"Grab a rope and let"s go," he said.
In a few moments they were on the upper level. With the efforts of half a dozen men, the body of the wheelbarrow was lifted into the car.
With a few final words of instruction to the colonel, Dr. Bird and his companions entered the car and were whisked away to the city.
A spectacle of destruction and ruin awaited them. Fully one-fourth of the city had sunk thirty feet into the ground. The sinking was not even nor uniform. The sunken ground was rolled into huge waves while buildings which had collapsed lay in confused heaps on all sides. From a dozen places in the area, columns of fire rose in the air.
Dr. Bird wasted little time on the scene before him. His car skirted the edge of the huge hole and took the road toward the Charleston airport, which was in a section which had suffered little. In half an hour the army transport roared into the air carrying Dr. Bird"s precious load of yellow powder. Four hours later they dropped to a landing at Langley Field.
"Now, Carnes," said the doctor as they debarked from the plane, "there is work ahead. It may be too late to do much to-night, but we have no time to waste. Get Bolton on the wire and tell him that we have positive evidence that Saranoff is still alive and still up to his devil"s tricks. Start every man of the secret service and every Department of Justice agent that can be spared on the trail. He can"t live underground all the time, and you ought to get on his tracks somehow. I"m going up to the laboratory and see what I can do with this stuff. Report to me there to-morrow morning."
Carnes hurried away. Bolton, the chief of the United States Secret Service, had long ago recovered from any professional jealousy he had ever felt of Dr. Bird. The doctor"s message that Ivan Saranoff, the arch-enemy of society, the head of the Young Labor party, the unofficial chief of the secret Soviet forces in the United States, was alive and again in the field against law and order was enough to set in motion every force that he controlled. Waving aside precedent and crashing his way past secretaries, he set in motion not only the agents of the Department of Justice but also the post-office forces and the specialized but highly efficient Military and Naval Intelligence Divisions. The telephone and telegraph wires from Washington were kept busy all night carrying orders and bringing in reports. But despite all this activity, it was with a disappointed face that Operative Carnes sought the doctor in the morning.
Dr. Bird was in his private laboratory on the third floor of the Bureau of Standards. When Carnes entered he was seated in a chair at his desk. His black eyes shone out from a chalky face like two burned holes in a blanket. Carnes started at the appearance of utter weariness presented by the famous scientist. Dr. Bird straightened up and squared his shoulders as the detective entered.
"Any luck, Carnes?" he asked eagerly.
"None at all, Doctor. We haven"t been able to get a single trace of his corporeal existence since that submarine was destroyed off the Ma.s.sachusetts coast. All we have is Karuska"s word that he is still alive."
"We heard his voice yesterday."
"His or another"s."
"True. Have you set in motion every agency that the government has?"
"Every one. Either Bolton or I have talked to the Chief of Police in every large city in the United States and Canada. Every known member of the Young Labor party who is above the mere rank and file is under close surveillance."
"Good enough. Keep at it and you"ll trace him eventually. As soon as I get a few quarts of black coffee into my system, I"ll start another line of search going."
"What did you find out last night?"
"I found that our seismograph recorded the Charleston disaster. It was merely a faint jog, about what should be caused by a severe landslide.
The disaster did not affect the earth"s crust, but was purely local.
That gives me a clue to his method."
"I described the affair to Bolton and he suggested that it might be caused by a disintegrating ray."