spoken of handing in his resignation because of his inability to cope with this gentleman, the Lone Wolf. And since he is my friend, I too was distressed on his behalf, and badgered my poor wits until they chanced upon an idea which led us to the light."
"You won't tell us?" the girl protested, with a little moue of disappointment, as the Frenchman paused provokingly.
"Perhaps I shouldn't. And yet—why not? As I say, it was elementary reasoning—a mere matter of logical deduction and elimination. One made up one's mind the Lone Wolf must be a certain sort of man; the rest was simply sifting France for the man to fit the theory, and then watching him until he gave himself away."
"You don't imagine we're going to let you stop there?" The American demanded in an aggrieved tone.
"No? I must continue? Very well: I confess to some little pride. It was a feat. He is cunning, that one!"
De Morbihan paused and shifted sideways in his chair, grinning like a mischievous child.
By this manoeuvre, thanks to the arrangement of mirrors lining the walls, he commanded an indirect view of Lanyard; a fact of which the latter was not unaware, though his expression remained unchanged as he sat—with a corner of his eye reserved for Roddy—speculating whether De Morbihan were telling the truth or only boasting for his own glorification.
"Do go on—please!" the girl begged prettily.
"I can deny you nothing, mademoiselle…. Well, then! From what little was known of this mysterious cre-
