"You back up to nineteen dollars and thirty cents," he persisted, ignoring me. "If you'll back up to twelve dollars, I'll pay it. That's all I've got." Then he turned on me irritably. "Good heavens, man," he exclaimed, "do you mean to tell me you've been to eight drug-stores this Sunday evening and spent nineteen dollars and thirty cents, and haven't got a drink yet?" "Do you think I'm after a drink?" I asked him. "Now look here, Davidson, I rather think you know what I am after. If you don't, it doesn't matter. But since you are coming along anyhow, pay your man off and come with me. I don't like to be followed." He agreed without hesitation, borrowed eight dollars from me to augment his twelve and crawled in with me. "The next address on the list is the right one," he said, as the man waited for directions. "I did the same round yesterday, but not being a plutocrat, I used the street-cars and my legs. And because you're a decent fellow and don't have to be chloroformed to have an idea injected, I'm going to tell you something. There were eleven roundsmen as well as the sergeant who heard me read the note I found at the Fleming house that night. You may have counted them through the window. A dozen plain-clothes men read it before morning. When the news of Mr. Fleming's mur--death came out, I thought this fellow Carter might know something, and I trailed Delia through this Mamie Brennan. When I got there I found Tom Brannigan and four other detectives sitting in the parlor, and Miss Delia, in a blue silk waist, making eyes at every mother's son of them." I laughed in spite of my disappointment. Davidson leaned forward and closed the window at the driver's back. Then he squared around and faced me. "Understand me, Mr. Knox," he said, "Mr. Fleming killed himself. You and I are agreed on that. Even if you aren't just convinced of it I'm telling you, and--better let it drop, sir," Under his quiet manner I felt a threat: it served to rouse me. "I'll let it drop when I'm through with it," I asserted, and got out my list of addresses. "You'll let it drop because it's too hot to hold," he retorted, with the suspicion of a smile. "If you are determined to know about Carter, I can tell you everything that is necessary." The chauffeur stopped his engine with an exasperated jerk and settled down in his seat, every line of his back bristling with irritation. "I prefer learning from Carter himself." He leaned back in his seat and produced an apple from the pocket of his coat. "You'll have to travel some to do it, son," he said. "Carter left for parts unknown last night, taking with him enough money to keep him in comfort for some little time." "Until all this blows over," I said bitterly.