the enemy outwitted me, in spite of my cordon of guards; and, second, because Brierly lost patience and exposed himself."
"But how?"
"I can only give you my theory for that. He was alone in the house, eh?"
"Yes. We were both out when he went."
"He wanted, doubtless, to go to town. There was no servant at hand whom he wished to send, so he walked toward the hack stand, or so I suppose. At the corner he met a policeman, as he thought, of course, and so, for a moment did I. They stopped, spoke together, and the sham policeman hailed an empty cab that was close at hand; then they crossed the street, the cab following, and the policeman seemed to be doing the talking, as I saw when they passed under the light at the corner. I had suspected some new plot, from the fact that the spy had so suddenly disappeared, and I had watched your place, in person, for the past three nights."
"Oh! And that is why we have seen so little of you?"
"In part. Well, I made up my mind, when they walked away together down that tree-shaded cross-street, that there was something wrong. I was on the opposite side, and concluded to close up, seeing
