There were dark circles under Lambert's eyes. He was working in a state of feverish anxiety. When the girl he loved had dematerialized from under his very eyes, panic had seized him; he had ripped away wires to break the current and lost the thread of his experiment, so that he could not reproduce it exactly without much labor. The scientist put on the black robes, and Phillips wished he too had some protective armor, even though he did believe that Lambert had told them a parcel of lies. The deaf mute's story was not too reassuring. Phillips warned his companions to be more quiet, and he himself sat quite still. * * * * * Lambert knew that the sleuths thought he was stark mad. He was aware of the fact that he had but a few hours in which to save the girl who had come at his cry to help him, who had loved him and whom he loved, only to be torn into some place unknown by the forces which were released in his experiment. And he knew he would rather die with her than live without her. He labored feverishly, though he tried to keep his brain calm in order to win. His notes helped him up to a certain point, but when he had made the final touches he had not had time to bring the data up to the moment, being eager to test out his apparatus. It was while testing that the awful event had occurred and he had seen Madge Crawford disappear before his very eyes. Her eyes, large and frightened, burned in his mind. The deaf mute, Felix, a small, spare man of about fifty, sent the professor some food and coffee through one of the sleuths. Lambert swallowed the coffee, but waved away the rest, impatiently. Phillips, watching his suspect constantly, was served a light supper at the end of the afternoon. There seemed to be a million wires to be touched, tested, and various strange apparatus. Several times, later on in the evening. Lambert threw the big switch with an air of expectancy, but little happened. Then Lambert would go to work again, testing, testing--adjusting this and that till Phillips swore under his breath. "Only an hour more, professor," said Phillips, who was bored to death and cramped from trying to obey the professor's orders to keep still. A circle of cigarette-ends surrounded the sleuth. "Only an hour," agreed Lambert. "Will you please be quiet, my man? This is a matter of my fiancée's life or death." Phillips was somewhat disgruntled, for he felt he had done Lambert quite a favor in allowing him to remain in the laboratory for so long, to prove his story. "I wish Doctor Morgan were here; I ought to have sent for him, I suppose," said Lambert, a few minutes later. "Will you allow me to get him? I cannot seem to perfect this last stage." "No time, now," declared Phillips. "I said till midnight."