know best themselves; it's been lucky for you, anyway, so far. What I'd like to find out now is how they have identified you, and got on your track so promptly. There's no guessing where these fellows get their information—it's just wonderful; but if we can find out, then perhaps we can stop the supply, or turn on something that will lead them into a pit. If you had called anywhere on business and declared yourself—as you might have done, for instance, at Mowbray's—I might be inclined to suspect that they got the tip in some crooked way from there. But you haven't. Of course, if those Italian chaps on the steamer are in it, you're probably identified pretty certainly; but if they're not, they may only have made a guess. We two landed together, and kept together, till a day or two ago; as far as any outsider would know, I might be Rigby and you might be Dorrington. Come, we'll work on those lines. I think I smell a plan. Are you staying anywhere?"
"No. I paid my bill at the hotel and came along here with my bag."
"Very well. Now there's a house at Highgate kept by a very trustworthy man, whom I know very well, where a man might be pretty com-
