“I’ll catch the hack down the road and hold it,” he said. “Is the gentleman down in the town?” “Mr. Jamieson,” Louise said impulsively, “I can use the hack. Take my horse and trap outside and drive like mad. Try to find the Dragon Fly—it ought to be easy to trace. I can think of no other way. Only, don’t lose a moment.” The new detective had gone, and a moment later Jamieson went rapidly down the drive, the cob’s feet striking fire at every step. Louise stood looking after them. When she turned around she faced Gertrude, who stood indignant, almost tragic, in the hall. “You KNOW what threatens Halsey, Louise,” she said accusingly. “I believe you know this whole horrible thing, this mystery that we are struggling with. If anything happens to Halsey, I shall never forgive you.” Louise only raised her hands despairingly and dropped them again. “He is as dear to me as he is to you,” she said sadly. “I tried to warn him.” “Nonsense!” I said, as briskly as I could. “We are making a lot of trouble out of something perhaps very small. Halsey was probably late—he is always late. Any moment we may hear the car coming up the road.” But it did not come. After a half-hour of suspense, Louise went out quietly, and did not come back. I hardly knew she was gone until I heard the station hack moving off. At eleven o’clock the telephone rang. It was Mr. Jamieson. “I have found the Dragon Fly, Miss Innes,” he said. “It has collided with a freight car on the siding above the station. No, Mr. Innes was not there, but we shall probably find him. Send Warner for the car.” But they did not find him. At four o’clock the next morning we were still waiting for news, while Alex watched the house and Sam the grounds. At daylight I dropped into exhausted sleep. Halsey had not come back, and there was no word from the detective. CHAPTER XXVI. HALSEY’S DISAPPEARANCE Nothing that had gone before had been as bad as this. The murder and Thomas’ sudden death we had been able to view in a detached sort of way. But with Halsey’s disappearance everything was altered. Our little circle, intact until now, was broken. We were no longer onlookers who saw a battle passing around them. We were the center of action. Of course, there was no time then to voice such an idea. My mind seemed able to hold only one thought: that Halsey had been foully dealt with, and that every minute lost might be fatal. Mr. Jamieson came back about eight o’clock the next morning: he was covered with mud, and his hat was gone. Altogether, we were a sad-looking trio that gathered around a breakfast that no one could eat. Over a cup of black coffee the detective told us what he had learned of Halsey’s movements the night before. Up to a certain point the car had made it easy enough to follow him. And I gathered that Mr. Burns, the other detective, had followed a similar car for miles at dawn, only to find it was a touring car on an endurance run.