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 Massachusetts 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."