I listened to. There was no sign or trace of his passenger,
and I fear it will be some time before he gets his fare.
On inquiring at Number 13 we found that the house belonged to
a respectable paperhanger, named Keswick, and that no one of
the name either of Sawyer or Dennis had ever been heard of
there."

"You don't mean to say," I cried, in amazement, "that that
tottering, feeble old woman was able to get out of the cab
while it was in motion, without either you or the driver
seeing her?"

"Old woman be damned!" said Sherlock Holmes, sharply.
"We were the old women to be so taken in. It must have been
a young man, and an active one, too, besides being an
incomparable actor. The get-up was inimitable. He saw that
he was followed, no doubt, and used this means of giving me
the slip. It shows that the man we are after is not as
lonely as I imagined he was, but has friends who are ready to
risk something for him. Now, Doctor, you are looking done-up.
Take my advice and turn in."

I was certainly feeling very weary, so I obeyed his injunction.
I left Holmes seated in front of the smouldering fire, and long
into the watches of the night I heard the low, melancholy
wailings of his violin, and knew that he was still pondering
over the strange problem which he had set himself to unravel.