As he spoke there was the sharp sound of horses'
hoofs and grating wheels against the curb, followed
by a sharp pull at the bell. Holmes whistled.
"A pair, by the sound," said he. "Yes," he continued,
glancing out of the window. "A nice little brougham
and a pair of beauties. A hundred and fifty guineas
apiece. There's money in
this case, Watson, if there is nothing else."
"I think that I had better go, Holmes."
"Not a bit, Doctor. Stay where you are. I am lost
without my Boswell. And this promises to be interesting.
It would be a pity to miss it."