Colonel Menendez had appeared about nine o’clock. He exhibiting no traces of illness that were perceptible to me. But this subtle change which I had detected, or thought I had detected, was more marked in Madame Stämer than in any one. In her strange, still eyes I had read what I can only describe as a stricken look. It had none of the heroic resignation and acceptance of the inevitable which had so startled me in the face of the Colonel on the previous day. There was a bitterness in it, as of one who has made a great but unwilling sacrifice, and again I had found myself questing that faint but fugitive memory, conjured up by the eyes of Madame de Stämer. Never had the shadow lain so darkly upon the house as it lay this morning with the sun blazing gladly out of a serene sky. The birds, the flowers, and Mother Earth herself bespoke the joy of summer. But beneath the roof of Cray’s Folly dwelt a spirit of unrest, of apprehension. I thought of that queer lull which comes before a tropical storm, and I thought I read a knowledge of pending evil even in the glances of the servants. I had spoken to Harley of this fear. He had smiled and nodded grimly, saying: “Evidently, Knox, you have forgotten that to-night is the night of the full moon.” It was in no easy state of mind, then, that I opened the gate and walked up to the porch of the Guest House. That the solution of the grand mystery of Cray’s Folly would automatically resolve these lesser mysteries I felt assured, and I was supported by the idea that a clue might lie here. The house, which from the roadway had an air of neglect, proved on close inspection to be well tended, but of an unprosperous aspect. The brass knocker, door knob, and letter box were brilliantly polished, whilst the windows and the window curtains were spotlessly clean. But the place cried aloud for the service of the decorator, and it did not need the deductive powers of a Paul Harley to determine that Mr. Colin Camber was in straitened circumstances. In response to my ringing the door was presently opened by Ah Tsong. His yellow face exhibited no trace of emotion whatever. He merely opened the door and stood there looking at me. “Is Mr. Camber at home?” I enquired. “Master no got,” crooned Ah Tsong. He proceeded quietly to close the door again. “One moment,” I said, “one moment. I wish, at any rate, to leave my card.” Ah Tsong allowed the door to remain open, but: “No usee palaber so fashion,” he said. “No feller comee here. Sabby?” “I savvy, right enough,” said I, “but all the same you have got to take my card in to Mr. Camber.” I handed him a card as I spoke, and suddenly addressing him in “pidgin,” of which, fortunately, I had a smattering: “Belong very quick, Ah Tsong,” I said, sharply, “or plenty big trouble, savvy?” “Sabby, sabby,” he muttered, nodding his head; and leaving me standing in the porch he retired along the sparsely carpeted hall.