"And every morning, I would enter the room, and examine the different
hairs and seals. You see, after the first week, I had stretched parallel
hairs all along the walls of the room, and along the ceiling; but over
the floor, which was of polished stone, I had set out little, colorless
wafers, tacky-side uppermost. Each wafer was numbered, and they were
arranged after a definite plan, so that I should be able to trace the
exact movements of any living thing that went across the floor.

"You will see that no material being or creature could possibly have
entered that room, without leaving many signs to tell me about it. But
nothing was ever disturbed, and I began to think that I should have to
risk an attempt to stay the night in the room, in the Electric Pentacle.
Yet, mind you, I knew that it would be a crazy thing to do; but I was
getting stumped, and ready to do anything.

"Once, about midnight, I did break the seal on the door, and have a quick
look in; but, I tell you, the whole Room gave one mad yell, and seemed to
come toward me in a great belly of shadows, as if the walls had bellied
in toward me. Of course, that must have been fancy. Anyway, the yell was
sufficient, and I slammed the door, and locked it, feeling a bit weak
down my spine. You know the feeling.

"And then, when I had got to that state of readiness for anything, I made
something of a discovery. It was about one in the morning, and I was
walking slowly 'round the castle, keeping in the soft grass. I had come
under the shadow of the East Front, and far above me, I could hear the
vile, hooning whistle of the Room, up in the darkness of the unlit wing.
Then, suddenly, a little in front of me, I heard a man's voice, speaking
low, but evidently in glee:--