ten o'clock
heart trouble , or consumption ? I ca n't remember . '' I threw the note aside and touched up some of my dispatches . Precisely at ten o'clock the door opened and a man came in . He was fashionably dressed , a mixture of Piccadilly and Broadway in taste . He was tall , slender , but well-formed ; and his blonde mustache shone out distinctly against a background of tanned skin . He had fine blue eyes .