with a careless curiosity, as if it were a matter of indifference to him what the detective's object was; then he said carelessly: "Well, you ought to know better than I. You have known him for ten years . . ." He paused, and added with just the faintest stress in his tone, "At least, by reputation."
The anxiety in the detective's face grew plainer, it almost gave him the air of being unnerved; and he said quickly, in a jerky voice: "Yes, and I know his way of acting too. During the last ten years I have learnt to unravel his intrigues—to understand and anticipate his manoeuvres. . . . Oh, his is a clever system! . . . Instead of lying low, as you'd expect, he attacks his opponent . . . openly. . . . He confuses him—at least, he tries to." He smiled a half-confident, a half-doubtful smile, "It is a mass of entangled, mysterious combinations. I've been caught in them myself again and again. You smile?"
"It interests me so," said the Duke, in a tone of apology.
"Oh, it interests me," said Guerchard, with a snarl. "But this time I see my way clearly. No more tricks—no more secret paths . . . We're fighting in the light of day." He paused, and said in a clear, sneering voice, "Lupin
