third man thrust a thick walking-stick through the two loops. The two men
with the rope, stooped to hold the dog, so that I could not see what was
done; but the poor beast gave a sudden awful howl, and immediately there
was a repetition of the uncomfortable breaking sound, I had heard earlier
in the night, as you will remember.

"The men stood up, and left the dog lying there, quiet enough now, as you
may suppose. For my part, I fully appreciated the calculated
remorselessness which had decided upon the animal's death, and the cold
determination with which it had been afterward executed so neatly. I
guessed that a man who might get into the 'light' of those particular
men, would be likely to come to quite as uncomfortable an ending.

"A minute later, one of the men called out to the rest that they should
'shift the wires.' One of the men came toward the doorway of the corridor
in which I stood, and I ran quickly back into the darkness of the upper
end. I saw the man reach up, and take something from the top of the door,
and I heard the slight, ringing jangle of steel wire.

"When he had gone, I ran back again, and saw the men passing, one after
another, through an opening in the stairs, formed by one of the marble
steps being raised. When the last man had vanished, the slab that made
the step was shut down, and there was not a sign of the secret door. It
was the seventh step from the bottom, as I took care to count: and a
splendid idea; for it was so solid that it did not ring hollow, even to a
fairly heavy hammer, as I found later.

"There is little more to tell. I got out of the house as quickly and
quietly as possible, and back to the inn. The police came without any
coaxing, when they knew the 'ghosts' were normal flesh and blood. We