"Is that an isolated building?"

"No, it is one wing of the old main building."

"On which floor?"

"The second floor. It is a six-story building."

"Have they been moved there recently?"

"They have been there for nearly a year."

"In that case there will be little chance of another attack of this sort to-night. At the same time, I would advise you to station extra guards there to-night and every night until I notify you otherwise.

Caution them to watch the lights carefully and to give an alarm at once if they appear to get dim. In such a case, send men to the roof with rifles with orders to shoot to kill anyone they find there. I am going back to Washington and I am going to take Karuska, your No. 9764 with me. You had better have one of the guards in the corridor, where Denberg and s.e.m.e.nsky are, wear this goldfish bowl, as you call it. A lot of plate gla.s.s--at least it will look like that--will come from Washington by plane. Cut it into sheets a foot square and use surgeon's plaster to make some temporary gla.s.s helmets for your men. I want all your guards to wear them until I either settle this matter or else send you some better helmets. Do you understand?"

"I understand all right, but I'm afraid that I can't do it. The wearing of such appliances would interfere with the efficiency of my men as guards."

"Brain and tongue paralysis would interfere rather more seriously, it seems to me. In any event, I have sufficient authority to enforce my request. If you are at all doubtful, call up the Attorney General and ask him."

The warden hesitated.

"If you don't mind, I think I will call Washington, Doctor," he said.

"I will have to get authority to turn No. 9764 over to you in any event."

"Call all you wish, Mr. Lawson. Mr. Carnes is talking to Washington now and we'll have a clear line through for you in a few minutes.

Meanwhile, get a set of shackles on Karuska and get him ready to travel by plane. He appears to be suffering from mental paralysis, but I don't know how his case will develope. He may go violently insane at any moment and I don't care to be aloft in a plane with an unbound maniac."

Major Martin looked up from the p.r.o.ne figure of Karuska.

"His condition duplicates that of Lieutenant Breslau, Dr. Bird," he said. "We received your telephoned message this afternoon and we kept Breslau in a flood of sunlight until dusk, and then put him under sun-ray lamps. I don't know how you got on to that treatment, but it is having a very beneficial effect. He can already make inarticulate sounds, and his eyes are not quite as vacant at they were. If he keeps on improving as he has, he should be able to talk intelligently in a few days. If you wish to question this man, why not give him the same treatment?"

"I haven't time, Major. I must make him talk to-night if it is humanly possible. I called you in because you are the most eminent authority on the brain in the government service. Is there any way of artificially stimulating this man's brain so that we can force the secrets of his subconscious mind from him?"

The major sat for a moment in profound thought.

"There _is_ a way, Doctor," he said at length, "but it is a method which I would not dare to use. By applying high frequency electrical stimulations to the medulla oblongata, at the same time bathing the cerebellum with ultra-violet, it might be done, but the chances are that either death or insanity would result. I would not do it."

"Major Martin, this man is a reckless and dangerous international criminal. If his gang carries out the plan which I fear they have formed, the lives of thousands, yes, of millions, may pay for your hesitation. I will a.s.sume full responsibility for the test if you will make it, and I have the authority of the President of the United States behind me."

"In that case, Doctor, I have no choice. The President is the Commander-in-chief of the army, and if those are his orders the experiment will be carried out. As a matter of form, I will ask that your orders be reduced to writing."

"I will write them gladly, Major. Please proceed with the experiment without delay."

Major Martin bowed and spoke to a waiting orderly. The prostrate figure of Karuska was wheeled down a corridor into the electrical laboratory, and with the aid of the laboratory technician the surgeon made his preparations. The Moss lamp was arranged to throw a flood of ultra-violet over the Russian's cranium while the leads from a deep therapy X-ray tube was connected, one to the front of Karuska's throat and the other to the base of his brain. At a signal from the major, a nurse began to administer ether.

"I guarantee nothing, Dr. Bird," said the major. "The paralysis of the vocal cords may be physical, in which case the victim will still be unable to speak, regardless of the brain stimulation. If, however, the evident paralysis is due to some obscure influence on the brain, it may work."

"In any, event I will hold you blameless and thank you for your help,"

replied the doctor. "Please start the stimulation."

Major Martin closed a switch, and the hum of a high tension alternator filled the laboratory. The Russian quivered for a moment and then lay still. Major Martin nodded and Dr. Bird stepped to the side of the operating table.

"Ivan Karuska," he said slowly and distinctly, "do you hear me?"

The Russian's lips quivered and an unintelligible murmur came from them.

"Ivan Karuska," repeated Dr. Bird, "do you hear me?"

There was a momentary struggle on the part of the Russian and then a surprisingly clear voice came from his lips.

"I do."

"Who is the present head of the Young Labor party?"

Again there was a pause before the name "Saranoff" came from the lips of the insensible figure. Carnes gave a sharp exclamation but a gesture from the doctor silenced him.

"Is Saranoff alive?"

"Yes."

"Is he in the United States?"

"No, he is in London."

"Is he coming to the United States?"

"Yes."

"When?"

"I don't know. Soon. As soon as we are ready for him."

"Where is he living in London?"

"I don't know."

"How did you get word that you were to be rescued from Atlanta?"

"A message was smuggled in to me by O'Grady, a guard in our pay."

"What was that vitrilene helmet for?"