about
eleven o’clock
Jim took the Burgundy from her with one hand and pointed the police to the barricaded door with the other . `` That is the door to the dumb-waiter shaft , '' he said . `` The lower one is fastened on the inside , in some manner . The noises commenced about eleven o'clock , while Mr. Brown was on guard . There were scraping sounds first , and later the sound of a falling body . He roused Mr. Reed and myself , but when we examined the shaft everything was quiet , and dark . We tried lowering a candle on a string , but -- it was extinguished from below . ''