“She struck me as being an ugly customer, and when she left, about eleven o’clock, and went across to the Armstrong place, I was not far behind her. She walked all around the house first, looking up at the windows. Then she rang the bell, and the minute the door was opened she was through it, and into the hall.” “How long did she stay?” “That’s the queer part of it,” Riggs said eagerly. “She didn’t come out that night at all. I went to bed at daylight, and that was the last I heard of her until the next day, when I saw her on a truck at the station, covered with a sheet. She’d been struck by the express and you would hardly have known her—dead, of course. I think she stayed all night in the Armstrong house, and the agent said she was crossing the track to take the up-train to town when the express struck her.” “Another circle!” I exclaimed. “Then we are just where we started.” “Not so bad as that, Miss Innes,” Riggs said eagerly. “Nina Carrington came from the town in California where Mr. Armstrong died. Why was the doctor so afraid of her? The Carrington woman knew something. I lived with Doctor Walker seven years, and I know him well. There are few things he is afraid of. I think he killed Mr. Armstrong out in the west somewhere, that’s what I think. What else he did I don’t know—but he dismissed me and pretty nearly throttled me—for telling Mr. Jamieson here about Mr. Innes’ having been at his office the night he disappeared, and about my hearing them quarreling.” “What was it Warner overheard the woman say to Mr. Innes, in the library?” the detective asked me. “She said ‘I knew there was something wrong from the start. A man isn’t well one day and dead the next without some reason.’” How perfectly it all seemed to fit! CHAPTER XXX. WHEN CHURCHYARDS YAWN It was on Wednesday Riggs told us the story of his connection with some incidents that had been previously unexplained. Halsey had been gone since the Friday night before, and with the passage of each day I felt that his chances were lessening. I knew well enough that he might be carried thousands of miles in the box-car, locked in, perhaps, without water or food. I had read of cases where bodies had been found locked in cars on isolated sidings in the west, and my spirits went down with every hour. His recovery was destined to be almost as sudden as his disappearance, and was due directly to the tramp Alex had brought to Sunnyside. It seems the man was grateful for his release, and when he learned something of Halsey’s whereabouts from another member of his fraternity—for it is a fraternity—he was prompt in letting us know.