A servant crossed the room and drew aside the heavy velvet curtains draping the false windows; the pure, colorless light streamed in, but it disclosed a world in tinge all blue and green and indigo. Our eyes, so long deprived of the rays emanating from the violet end of the spectrum, were now affected by them alone; every object was horribly transformed by the bluish-green bands surrounding and outlining it. A man brushed carelessly past me; it was Colman Hoyt, and his face was of a man already dead; his lips moved, but no sound issued from them. He passed into the model-room connecting on the west with the central hall; there was the sound of a fall, and Indiman and I followed quickly. Yet not quickly enough, for across the great globe upon which were traced the records of his four unsuccessful expeditions lay the body of Colman Hoyt. He was a heavy man, and he had evidently flung himself at his full weight upon the sharp, arrow-pointed rod that served as the axis of this miniature world; it had pierced to his very heart. The North Pole-at last he had reached it. "Let us go," said Indiman to me, and we stole quickly away. Now, in the vestibule below, a young man who had entered in haste pushed rudely past us and made for the row of private letter-boxes fixed opposite the coat-room. He paused at box No. 82 and gazed eagerly into it. The front was of glass, and I could see readily that the box was empty. The young man had his pass-key in his hand, but it was clearly useless to insert it, and he finally turned away, his countenance displaying the bitterest sense of disappointment. His wildly roving eye encountered that of Esper Indiman. "Sir!" he began, impetuously, then checked himself, bowed ceremoniously, and was gone. IV The Private Letter-Box I had agreed to meet Esper Indiman at the Utinam and dine there. The weather had turned cold again, for it was the end of our changeable March, and the fireplace in the common room of the club was heaped high with hickory logs, a cheerful sight, were it not for that odious motto, "Non Possumus," graven over the mantel-shelf where it must inevitably meet every eye. Never could I read it without a tightening at my heartstrings; a potency of blighting evil seemed to lie in the very words.