“Exactly. This chance of the picture has supplied us with one of our most obvious missing links. We have him, Watson, we have him, and I dare swear that before tomorrow night he will be fluttering in our net as helpless as one of his own butterflies. A pin, a cork, and a card, and we add him to the Baker Street collection!” He burst into one of his rare fits of laughter as he turned away from the picture. I have not heard him laugh often, and it has always boded ill to somebody.
