Cotherstone made a sudden exclamation and a sharp movement—both checked by an equally sudden change of attitude and expression on the part of the ex-detective. For Kitely sat straight up and looked the junior partner squarely in the face.
"Better not, Mr. Cotherstone!" he said, with a grin that showed his yellow teeth. "You can't very well choke the life out of me in your own office, can you? You couldn't hide my old carcase as easily as you and Mallalieu hid those Building Society funds, you know. So—be calm! I'm a reasonable man—and getting an old man."
He accompanied the last words with a meaning smile, and Cotherstone took a turn or two about the room, trying to steady himself. And Kitely presently went on again, in the same monotonous tones:
"Think it all out—by all means," he said. "I don't suppose there's a soul in all England but myself knows your secret—and Mallalieu's. It was sheer accident, of course, that I ever discovered it. But—I know! Just consider what I do know. Consider, too, what you stand to lose. There's Mallalieu, so much respected that he's Mayor of this ancient borough for the second time. There's you—so much trusted that you've been Borough Treasurer for years. You can't afford to let me tell the Highmarket folk that you two are ex-convicts! Besides, in your case there's another thing—there's your daughter."
Cotherstone groaned—a deep, unmistakable groan of sheer torture. But Kitely went on remorselessly.
"Your daughter's just about to marry the most promising young man in the place," he said. "A young fellow with a career before him. Do you think he'd marry her if he knew that her father—even if it is thirty years ago—had been convicted of——"
"Look you here!" interrupted Cotherstone, through set teeth. "I've had enough! I've asked you once before if you'd any more to say—now I'll put it in another fashion. For I see what you're after—and it's blackmail! How much do you want? Come on—give it a name!"
"Name nothing, till you've told Mallalieu," answered Kitely. "There's no hurry. You two can't, and I shan't, run away. Time enough—I've the whip hand. Tell your partner, the Mayor, all I've told you—then you can put your heads together, and see what you're inclined to do. An annuity, now?—that would suit me."
"You haven't mentioned this to a soul?" asked Cotherstone anxiously.
"Bah!" sneered Kitely. "D'ye think I'm a fool? Not likely. Well—now you know. I'll come in here again tomorrow afternoon. And—you'll both be here, and ready with a proposal."