"In other words," Monk interpreted: "you have under your hand proof of our bona fides."

"And what is to prevent me from going ashore with these at once?"

"Nothing," said Phinuit.

"But this is too much!"

"Nothing," Phinuit elaborated, "but your own good sense."

"Ah!" said Lanyard--"ah!"--and looked from face to face.

Monk adjusted his eyebrows to an angle of earnestness and sincerity.

"The difficulty is, Mr. Lanyard," he said persuasively, "they have cost us so much, those jewels, in time and money and exertion, we can hardly be expected to sit still and see you walk off with them and say never a word in protection of our own interests. Therefore I must warn you, in the most friendly spirit: if you succeed in making your escape from the Sybarite with the jewels, as you quite possibly may, it will be my duty as a law-abiding man to inform the police that André Duchemin is at large with his loot from the Château de Montalais. And I don't think you'd get very far, then, or that your fantastic story about meaning to return them would gain much credence. D'ye see?"

"But distinctly! If, however, I leave the jewels and lay an information against you with the police----?"

"To do that you would have to go ashore...."