The brandy was brought—and three glasses. Frenhofer promptly took the hint and, filling one to the brim, held it out to the landlord.

"You will drink our health, Père Hanaut—my health and the health of monsieur here, and the health of the fair Annette. Incidentally, you will drink also to the success of the little scheme which monsieur and I are planning."

"In such brandy," the proprietor declared hoarsely, "I would drink to the devil himself!"

He threw back his head and the contents of his glass vanished. He set it down with a little smack of the lips. Once more he looked at the bottle. Frenhofer filled up his glass, but motioned to the door with his head.

"You will excuse us, dear friend," he begged, laying his hand persuasively upon the other's shoulder. "Monsieur and I have little enough of time."

The landlord withdrew. Frenhofer walked around the little apartment. Their privacy was certainly assured.

"Monsieur," he announced, turning to Hunterleys, "there has been a great discussion as to the next meeting-place between our friends—the next, which will be also the last. They are safe enough in reality at the villa, but Monsieur Douaille is nervous. The affair of last night terrified him. The reason for these things I, of course, know nothing of, but it seems that Monsieur Douaille is very anxious indeed to keep his association with my august master and Herr Selingman as secret as possible. He has declined most positively to set foot again within the Villa Mimosa. Many plans have been suggested. This is the one adopted. For some weeks a German down in Monaco, a shipping agent, has had a yacht in the harbour for hire. He has approached Mr. Grex several times, not knowing his identity; ignorant, indeed, of the fact that the Grand Duke himself possesses one of the finest yachts afloat. However, that is nothing. Mr. Grex thought suddenly of the yacht. He suggested it to the others. They were enthusiastic. The yacht is to be hired for a week, or longer if necessary, and used only to-night. Behold the wonderful good-fortune of the affair! It is I who have been selected by my master to proceed to Monaco to make arrangements with the German, Herr Schwann. I am on my way there at the moment."

"A yacht?" Hunterleys repeated.

"There are wonderful things to be thought of," Frenhofer asserted eagerly. "Consider, monsieur! The yacht of this man Schwann has never been seen by my master. Consider, too, that aboard her there must be a dozen hiding-places. The crew has been brought together from anywhere. They can be bought to a man. There is only one point, monsieur, which should be arranged before I enter upon this last and, for me, most troublesome and dangerous enterprise."

"And that?" Hunterleys enquired.