By day there was little traffic. Occasionally a long dray, on a
gigantic pair of wheels, drawn by a long string of white Normandy
horses in single file, with blue harness and jangling bells, filled up
the roadway. Costermongers trundled their barrows along with strange,
unmusical cries. Now and again an empty cab returning to its stable,
with weary horse and semi-somnolent coachman, crawled through the
street.

But at night it was otherwise. Many vehicles came dashing down
Tinplate Street: carriages, public and private, of every variety, from
the rattletrap cab hired off the stand, or the decent coach from the
livery stable, to the smart spick-and-span brougham, with its
well-appointed horses and servants in neat livery. They all set down
at the same door, and took up from it at any hour between midnight and
dawn, waiting patiently in file in the wide street round the corner,
till the summons came as each carriage was required.

As seen in the daytime, there was nothing strange about the door, or
the house to which it gave access. The place purported to be an
hotel--a seedy, out-at-elbows, seemingly little-frequented hotel,
rejoicing in the altogether inappropriate name of the Hôtel Paradis,
or the Paradise Hotel. Its outward appearance was calculated to repel
rather than invite customers; no one would be likely to lodge there
who could go elsewhere. It had habitually a deserted look, with all
its blinds and casements close shut, as though its lodgers slept
through the day, or had gone away, never to return.

But this was only by day. At night the street-door stood wide open,
and a porter was on duty at the foot of the staircase within. He was
on the inner side of a stout oaken door, in which was a small window,