change made and the bell transferred to that room, so that his personal visitors could come and go without disturbing the house. In a little time, however, this proved very annoying, because most visitors came to this door, and he gave an order for a general bell to be put in. This he intended should also have a pull on the right-hand post, but the workman, who seemed to have no conception that one post could carry two pulls, put it on the left. Thus the post nearest Wing's room carried the general bell, and the further post his own, and neither of the bells could be heard on the premises devoted to the other. At first, this condition gave rise to troublesome mistakes, and Wing talked often of a change, but gradually the visitors to the house became accustomed to the condition and the need of a change disappeared.
It was clear, therefore, that whoever the murderer was, he had rung the bell which alone could be heard by the lawyer at his desk, and therefore must have been acquainted with the peculiarity of the bell-pulls. Had the lawyer had any cause to fear? Apparently not, for the shade to the window nearest his desk was raised and he evidently had answered the
