nd Co. will
pocket all the credit. That comes of being an unofficial personage."

"But he begs you to help him."

"Yes. He knows that I am his superior, and acknowledges it to me; but
he would cut his tongue out before he would own it to any third person.
However, we may as well go and have a look. I shall work it out on my
own hook. I may have a laugh at them if I have nothing else. Come on!"

He hustled on his overcoat, and bustled about in a way that showed that
an energetic fit had superseded the apathetic one.

"Get your hat," he said.

"You wish me to come?"

"Yes, if you have nothing better to do." A minute later we were both in
a hansom, driving furiously for the Brixton Road.

It was a foggy, cloudy morning, and a dun-coloured veil hung over the
house-tops, looking like the reflection of the mud-coloured streets
beneath. My companion was in the best of spirits, and prattled away
about Cremona fiddles, and the difference between a Stradivarius and
an Amati. As for myself, I was silent, for the dull weather and the
melancholy business upon which we were engaged, depressed my spirits.

"You don't seem to give much thought to the matter in hand," I said at
last, interrupting Holmes' musical disquisition.

"No data yet," he answered. "It is a capital mistake to theorize before
you have all the evidence. It biases the judgment."

"You will have your data soon," I remarked, pointing with my finger;
"this is the Brixton Road, and that is the house, if I am not very much
mistaken."

"So it is. Stop, driver, stop!" We were still a hundred yards or so from
it, but he insisted upon our alighting, and we finished our journey upon
foot.

Number 3, Lauriston Gardens wore an ill-omened and minatory look. It was
one of four which stood back some little way from the street, two being
occupied and two empty. The latter looked out with three tiers of vacant
melancholy windows, which were blank and dreary, save that here and
there a "To Let" card had developed like a cataract upon the bleared
panes. A small garden sprinkled over with a scattered eruption of sickly
plants separated each of these houses from the street, and was traversed
by a narrow pathway, yellowish in colour, and consisting apparently of a
mixture of clay and of gravel. The whole place was very sloppy from the
rain which had fallen through the night. The garden was bounded by a
three-foot brick wall with a fringe of wood rails upon the top, and
agai