places in London. The front of the building was constructed to
represent a gigantic safe door, and under the colloquial designation
of "The Safe" the place had passed into a synonym for all that was
secure and impregnable. Half of the marketable securities in the west
of London were popularly reported to have seen the inside of its
coffers at one time or another, together with the same generous
proportion of family jewels. However exaggerated an estimate this
might be, the substratum of truth was solid and auriferous enough to
dazzle the imagination. When ordinary safes were being carried bodily
away with impunity or ingeniously fused open by the scientifically
equipped cracksman, nervous bond-holders turned with relief to the
attractions of an establishment whose modest claim was summed up in
its telegraphic address: "Impregnable." To it went also the jewel-case
between the lady's social engagements, and when in due course "the
family" journeyed north--or south, east or west--whenever, in short,
the London house was closed, its capacious storerooms received the
plate-chest as an established custom. Not a few traders
also--jewellers, financiers, dealers in pictures, antiques and costly
bijouterie, for instance--constantly used its facilities for any stock
that they did not require immediately to hand.

There was only one entrance to the place, an exaggerated keyhole, to
carry out the similitude of the safe-door alluded to. The ground floor
was occupied by the ordinary offices of the company; all the
strong-rooms and safes lay in the steel-cased basement. This was
reached both by a lift and by a flight of steps. In either case the
visitor found before him a grille of massive proportions. Behind its
bars stood a formidable commissionaire who never left his post, his
sole duty being to open and close the grille to arriving and departing
clients. Beyond this, a short passage led into the round central hall