CHAPTER IX.

CUI BONO? When I arrived at the Society's rooms on the evening for which I had an invitation, I found them pleasantly lighted. The various scientific diagrams and instruments had been removed, and comfortable arm-chairs were arranged so that a free passage was available, not merely to each row, but to each chair. The place was full when I entered, and soon afterwards the door was closed and locked. Natalie Brande and Edith Metford were seated beside each other. An empty chair was on Miss Metford's right. She saw me…