"I should advise you to keep yourself cool," he said with affected quietness. "There's more than me'll think a good deal if you chance to let yourself out like that."

"You do think it!" reiterated Cotherstone passionately. "Damn it, d'ye think I haven't noticed it? Always looking at me as if—as if——"

"Now then, keep yourself calm," interrupted Mallalieu. "I can look at you or at any other, in any way I like, can't I? There's no need to distress yourself—I shan't give aught away. If you took it in your head to settle matters—as they were settled—well, I shan't say a word. That is unless—you understand?"

"Understand what?" screamed Cotherstone.

"Unless I'm obliged to," answered Mallalieu. "I should have to make it clear that I'd naught to do with that particular matter, d'ye see? Every man for himself's a sound principle. But—I see no need. I don't believe there'll be any need. And it doesn't matter the value of that pen that's shaking so in your hand to me if an innocent man suffers—if he's innocent o' that, he's guilty o' something else. You're safe with me."

Cotherstone flung the pen on the floor and stamped on it. And Mallalieu laughed cynically and walked slowly across to the door.

"You're a fool, Cotherstone," he said. "Go on a bit more like that, and you'll let it all out to somebody 'at 'll not keep secrets as I can. Cool yourself, man, cool yourself!"

"Hang you!" shouted Cotherstone. "Mind I don't let something out about you! Where were you that night, I should like to know? Or, rather, I do know! You're no safer than I am! And if I told what I do know——"

Mallalieu, with his hand on the latch, turned and looked his partner in the face—without furtiveness, for once.

"And if you told aught that you do, or fancy you know," he said quietly, "there'd be ruin in your home, you soft fool! I thought you wanted things kept quiet for your lass's sake? Pshaw!—you're taking leave o' your senses!"