"Oh, it's nothing."

"Williams, it's a great deal. If you want to do me another favour say nothing about the matter. I don't want anyone to know this man was in my workshop. A lot of curious and envious thieves would gather round him and try to get some of my secrets out of him."

"All right. I'll say nothing."

Leigh took out his little silver flask of eau-de-cologne, moistened his hands with the perfume and drew the pungent fragrant vapour noisily into his nose. "So refreshing," he whispered audibly, "So refreshing." Then lifting his face out of his hands he held the flask toward the landlord, saying, "Try some. It's most refreshing."

"Pah, no," said Williams with a gesture of scorn, "I never touch such stuff."

"Hah! If you were like me you would. If you were always reeking with oil, steeping in the fish-oil of machines, you'd be glad enough to take the smell of it out of your nose with any perfume. I told you I have been busy this morning. The want of my breakfast, and the business I was on, pretty nearly knocked me up. Bah! The dust of that job is in my throat still."

"Drink up your brandy and soda and have another with me," said the landlord encouragingly.

"No, no. I won't have any more. Hah! it was a dusty job."

"What was it, Mr. Leigh, may I ask?"

"Well, you have done me a good turn in keeping your eye on that fellow for me, and you're going to do me another good turn by saying nothing about it; so I'll tell you. Have you ever heard anything of Albertus Magnus?"