Suddenly the lights flashed on, and the apparition disappeared. Noticing that there was something glistening on the floor where the thing had stood, I went over to investigate. There was a small pool of clear, foul-smelling liquid rapidly soaking into the rug. As I bent over to examine it I heard a cry of warning from the girl and a quick movement behind me. I turned, but could not move in time to avoid the heavy chair which was rushing toward me. It knocked me flat, fell over me, righted itself, and came back, apparently bent on my destruction. I managed to roll out of its way and get to my feet, but it promptly chased me to the davenport, behind which I took shelter. “Holy mackerel!” exclaimed the pseudo Dr. Dorp. The chair, apparently realizing that it was baffled, swung about and quickly returned to its place in the corner. The phenomena, thus far, including the materialization of the spectre, had taken a little more than half an hour. I heard the sound for which I had been listening--the roar of the doctor’s motor. “A remarkable chair, doctor,” I said. “The thing rather fagged me. I think I’ll step out on the porch for a breath of cool air.” The door obligingly opened for me when I left the room. The front door, however, was already open. Rafferty was standing on the porch. “Go on down to the car,” he whispered. “The doctor’s waitin’ for you.” I went, and climbed into the front seat beside the doctor. Detective Hogan was in the back seat. We whirled away with moaning gears. The doctor handed me a folded map. “Open this, will you, Evans?” he requested. “Hold it beneath the dash light. I don’t want to miss the road.” I opened it, and found it was a detailed map of Lake County. A large triangle had been traced on the paper, its smallest angle resting on a spot marked with an X, apparently some eight miles due west of our present location. “Does X mark the spot where the body was found?” I asked, as we spun around onto Sheridan Road on two wheels. “It marks the spot where I expect to find the source of Miss Van Loan’s troubles,” replied the doctor. “It isn’t far, as the crow flies, but there is no through road to it. We have a roundabout trip of about sixteen miles ahead of us.” * * * * * We continued north on Sheridan Road for nearly four miles. Then we swung west at Highwood, continuing in this direction for about eight miles. Turning south on the Milwaukee road at Halfday, we covered another three miles of road before the doctor slowed his terrific pace. “Take the wheel now, will you?” he requested, “and drive slowly.”