' Perhaps it was too
difficult to direct the fluid, without positively squirting it, which
might have given the whole thing away. The candles and the fire may
possibly have been extinguished by the agency of carbonic acid gas; but
how suspended, I have no idea.
"The secret hiding paces were, of course, ancient. There was also, did I
tell you? a bell which they had rigged up to ring, when anyone entered
the gates at the end of the drive. If I had not climbed the wall, I
should have found nothing for my pains; for the bell would have warned
them had I gone in through the gateway."
"What was on the negative?" I asked, with much curiosity.
"A picture of the fine wire with which they were grappling for the hook
that held the entrance door open. They were doing it from one of the
crevices in the ceiling. They had evidently made no preparations for
lifting the hook. I suppose they never thought that anyone would make
use of it, and so they had to improvise a grapple. The wire was too fine
to be seen by the amount of light we had in the hall; but the flashlight
'picked it out.' Do you see?
"The opening of the inner doors was managed by wires, as you will have
guessed, which they unshipped after use, or else I should soon have found
them, when I made my search.
"I think I have now explained everything. The hound was killed, of
course, by the men direct. You see, they made the place as dark as
possible, first.
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