"Oh, yes, you do; and I do; and the wireless man does. We're the only three. The rest of them are still figuring on comets." "Well?" "I don't suppose there's any real doubt left in your mind but that this man can turn the juice off again, if he wants to?" "I don't know as he did it," persisted McCarthy stoutly. "Now, how long do you suppose you'd last if the public should get on to the fact that this hidden power was going to exert itself again unless you left town?" A slight moisture bedewed McCarthy's forehead. "Not all your police, nor all your power could save you, if the general public once became thoroughly convinced that it was to go through another experience like last night's unless it ousted you. Why, a mob of a million men would gather against you in an hour You see," drawled Percy Darrow, "why you'd better look after that wireless man of yours--and me." "And you," repeated McCarthy. "What do you want?" "I want to see those wireless messages, first of all," said Darrow, reaching out his hand. McCarthy hesitated; then swiftly thrust forward the flimsies. Darrow, a slight smile curving his full red lips, held them to the light. They read as follows: "McCarthy: A sign was promised you at six o'clock. It has been sent. Repent and beware! Go while there is yet time. M." There were four of these, couched in almost identical language. The fifth and last message was shorter: "McCarthy: Flee from the wrath to come. "M." "What," said Darrow, "is to prevent the other operators who must have caught this message from giving it to the public? What, indeed, is to prevent M.'s appealing direct to the public?" "I don't know," confessed McCarthy miserably. "Do you?" "Not at this moment. Will you send for the operator who took these?" McCarthy snatched down the telephone receiver, through which presently he spoke a message. "What have you got to do with this?" he demanded, after he had hung up the hook. "I want something," said Percy, "of course." "Sure," growled McCarthy, once more back on familiar ground, and glad of it. "What is it?" "I'll tell you when I'm sure whether I can do anything for you in this matter." "If this fellow didn't leak, how did you know about them wireless?" demanded McCarthy again. "How do you know who's doin' this?" Darrow smiled.