maybe more, a fellow who just seemed to patrol the street next below this, almost as faithfully as I did, and for quite a time I wondered why; and thus I began to watch him, till I found that his promenades always took him round the corner, and seemed to bring him up right opposite the house you live in. I guess I ought to step a little brisker, sir; somebody's coming. The man was not very tall, and thick set like, and if I hadn't taken notice of him, at the first, almost, I might not have recognised him, for he changed his clothes almost every trip; sometimes dressing common, sometimes quite swell; but I knew him every time."
"Make it as short as you can, officer; we're almost at the corner."
"All right, sir." The man glanced back. "Your cab's here, all right, sir. I was just going to tell you how we came to arrest the fellow."
"Ah!" Brierly smiled in the dusk. It had puzzled Ferrars or seemed to, the sudden cessation of the spy's visits, and now he would be able to enlighten the detective. "You have him, then? This shall be worth something to you."
"I don't want a reward for doing a plain duty, sir. Just walk on ahead for a step; somebody's coming."
Preoccupied with the story, and without glancing
