"Not that again, surely, old chap," he said, a note of anxiety in his voice. "Do you quite realise how many times you have filled it in the last thirty-six hours?"

Lenox's fingers closed like a vice upon his treasure.

"Can't say I've troubled to keep count," he answered in a hard voice. "And I'm damned if I can see what right you have to take me to task about it."

"Not a shadow of right," Desmond owned frankly, "Except that I care immensely what comes to you, and to that plucky wife of yours who has honoured me with her friendship; and whom I am hoping to welcome here—as Mrs Lenox before many months are out."

The shot took affect. With a listless movement Lenox let his fingers fall apart, and the pipe rolled on to the rug at his feet. Here Brutus lazily investigated it as a possible treasure trove; and after a puzzled sniff or two lifted inquiring ears to his master, who was looking absently in another direction.

Then Desmond stooped, and picked it up.

"Will you let me empty it, and fill it from my own pouch?" he asked quietly: and Lenox gave silent assent.

"No doubt I seem to you a contemptible brute enough," he added bitterly, while the transfer of tobaccos was in progress. "And no doubt you're not far wrong either. But if you could get inside my head for a few hours, you might possibly understand."

"My dear Lenox, it is just because I understand that I'm keen to do what little I can for you, even at the risk of being damned for officiousness! If your head's giving you trouble, why not take a genuine dose of the stuff last thing; and get a night of solid rest before you start work? That seems to me safer than trifling with poison in the form of tobacco. You know yourself you'd make a square stand against the naked drug. It's the little 'nips,' the small capitulations, that do the damage in the long-run."

He held out the pipe: and Lenox, clenching his teeth upon it, proceeded to set it alight.