"Get him into the chair quick," he heard Farrington's voice say. "That was a good idea of yours, doctor." "Just a sprayed wire," said Dr. Fall complacently; "it is a pretty useful check upon a man. You took a wonderful assistant when you pressed electricity to your aid, Farrington." The lights were all on now, and T. B. was being strapped to the chair. He had recovered from the shock, but he had recovered too late. In the interval of his unconsciousness the body of Poltavo had been removed out of his sight. They were doing to him all that they had done to Poltavo. He felt the electrodes at his calf and on his wrists and clenched his teeth, for he knew in what desperate strait he was. "Well, Mr. Smith," said Farrington pleasantly, "I am afraid you have got yourself into rather a mess. Where is the other man?" he asked quickly. He looked at Fall, and the doctor returned his gaze. "I forgot the other man," said Fall slowly; "in the corridor outside." He went to the invisible door and it opened at his touch. He was out of the room a few minutes, and returned looking old and drawn. "He has got away," he said; "the woman has gone too." Farrington nodded. "What does he matter?" he asked roughly; "they know as much as they are likely to know. Put the control on the door." Fall turned over a switch and the other renewed his attention to T. B. "You know exactly how you are situated, Mr. Smith," said Farrington, "and now I am going to tell you exactly how you may escape from your position." "I shall be interested to learn," said T. B. coolly, "but I warn you before you tell me that if my escape is contingent upon your own, then I am afraid I am doomed to dissolution." The other nodded. "As you surmise," he said, "your escape is indeed contingent upon mine and that of my friends. My terms to you are that you shall pass me out of England. I know you are going to tell me that you have not the power, but I am as well acquainted with the extraordinary privileges of your department as you are. I know that you can take me out of the Secret House and land me in Calais to-morrow morning, and there is not one man throughout the length and breadth of England who will say you nay. I offer you your life on condition that you do this, otherwise----" "Otherwise?" asked T. B.