The hall was very dark. From half-way up the staircase some of the starlit evening scattered mistily through a narrow window, splintering the boards with spars of pale milky shadow. A clock chattered cluck-cluck-spin-spin-cluck close to Harkness's ear. Otherwise there was not a sound anywhere. He reflected that several things had been forgotten in his talk with Dunbar; one that there would, in all probability, be no light in the upper passage. How was he then to find the younger Crispin's door, or to see whether or no there were that piece of paper under Mrs. Crispin's? Secondly, it would be in the room on the ground floor where he had had his strange interview with the elder Crispin that he must see the younger, because, of course, that gloomy creature, dumb though he appeared to be, would be at least aware that Harkness had never ventured into the upper floor at all and could not therefore have left his gold match-box there. On the whole, this would be the better for Dunbar's plan, because it would lead the younger Crispin all the farther from his wife's door. But there were, at this point, so many dangers and difficulties, so many opportunities of disaster, that in absolute desperation he must perforce go forward. He was aware that for himself now the easiest fashion would be to persuade himself that he had indeed lost his match-box and was returning to secure it. He hesitated on the bottom step of the stairs as though he were wondering what he ought to do, how he might find the tiresome thing without rousing the whole house. He climbed the staircase slowly, walking softly, but not too softly, accompanied all the way by the clock that attended him like a faithful coughing dog. At the turn of the stairs he found the passage that Dunbar had described to him, and he was instantly relieved to find that a wide and deep window at the far end had no curtain, and that through it the long stretch was suffused with a pale ghostly light turning the heavy old frames, the faded green paper, into shadow opaque. He hesitated, looking about him, then clearly saw the two doors that must be those of Crispin and his wife; from under one of them, quite clearly, a small piece of white paper obtruded. He waited an instant, then moved boldly forward, not trying to walk softly, and knocked on the nearer of the two doors. There was a moment's pause, during which the wild beating of his own heart and the friendly chatter of the clock from downstairs seemed to strive together to break the silence. The door opened abruptly, and the younger Crispin, his white horse-face unmoved above his dark evening clothes, appeared there.