"Merely twisting up a handkerchief into a form of gag," replied Cleek, in a tone which clearly indicated that he was speaking with one end of that handkerchief held between his teeth. "It is not a nice thought, the idea of gagging a gentleman as if he were a murderous navvy or a savage dog that needs muzzling. I should much prefer, Mr. Clavering, accepting your parole—putting you on your word of honour not to cry out or to make any effort to attract the attention of anybody who may enter this ruin to-night; and if you will give me that——"

"I'll give you anything rather than undergo any further indignity," snapped Geoff. "Look here, you know, Mr. Thingamy, this is a beastly caddish trick altogether, jumping on a man in the dark and giving him no chance to defend himself."

"Unfortunately, the law cannot allow itself to study the niceties of etiquette, my dear sir," replied Cleek. "It has to go on the principle that the end justifies the means, and it must always be prepared to accept risks. I, as one of its representatives, am, as I have told you, quite ready to accept one now; so if you will give me your word of honour not to make any outcry, the gag can be dispensed with."

"Very well, then; I do give it."

"Good! And I accept it; so that's the end of that, as the fellow said when he walked off the pier," said Cleek as he ceased twisting up the handkerchief and returned it to his pocket. "But why not go farther and spare us both an unnecessary amount of trouble and discomfort, Mr. Clavering?"

"I don't know what you mean. Put it a little clearer, please. I'm not good at guessing things."

"No, you are not; otherwise you might have guessed that when Lady Katharine Fordham denied so emphatically what you knew to be true—— But no matter; we'll talk of that some other time."

"No, we won't!" flashed in Geoff hotly. "We'll leave Lady Katharine Fordham's name out of this business altogether. Understand that? I don't care whether you're a police officer or not, by George! Any man that tries to drag her into this affair will have to thrash me, or I'll thrash him, that's all. You can believe what you jolly well please about what you overheard. You've got no witness to prove that you did hear it; and as for me—I'll lie like a pickpocket and deny every word if you try to make capital out of it against her."

Cleek laughed, laughed audibly. But there was a note of gratification, even of admiration, underlying it; and he found himself liking this loyal, lovable, hot-tempered boy better and better with every passing moment. But the laughter nettled Geoff, and he was off like a firework in a winking.

"Look here! I'll tell you what!" he flung out hotly. "If you'll set me free from this confounded chain and come outside with me and will take a sporting chance—if you thrash me I'll take my medicine and do whatever you tell me; but if I thrash you, you're to let me go about my business, and to say nothing to anybody about what you happened to hear. Now, then, speak up. Which are you—a man or a mouse?"