Towards the Strand there is basement, sub-basement, and the huge wine cellars beneath all.

After descending the four flights of the service stairs, and traversing a long passage running parallel with the kitchen, the two found themselves opposite a door, which, on being unlocked, gave access to another flight of stairs.

At the foot of this was the main entrance to the cellars.
Outside the entrance was the wine-lift, for the ascension of delicious fluids to the upper floors, and, opposite, Mr Hubbard's little office.
There was electric light everywhere.
Babylon, who, as being most accustomed to them, held the bunch of keys, opened the great door, and then they were in the first cellar--the first of a suite of five.

Racksole was struck not only by the icy coolness of the place, but also by its vastness.

Babylon had seized a portable electric handlight, attached to a long wire, which lay handy, and, waving it about, disclosed the dimensions of the place.