The third room was like the first in dimensions, but instead of being black it was entirely sheathed with plates of brass, walls, ceiling, and floor,—tarnished now, and turning green, but still brilliant under the lantern light. In the middle stood an oblong altar of porphyry, its longer dimensions on the axis of the suite of rooms, and at one end, opposite the range of doors, a pedestal of black basalt.
This was all. Three rooms, stranger than these, even in their emptiness, it would be hard to imagine. In Egypt, in India, they would not be entirely out of place, but here in Paris, in a commonplace hôtel, in the Rue M. le Prince, they were incredible.
We retraced our steps, Eugene closed the iron door with its baize covering, and we went into one of the front chambers and sat down, looking at each other.
"Nice party, your aunt," said Fargeau. "Nice old party, with amiable tastes; I am glad we are not to spend the night in those rooms."
"What do you suppose she did there?" inquired Duchesne. "I know more or less about black art, but that series of rooms is too much for me."
"My impression is," said d'Ardeche, "that the brazen room was a kind of sanctuary containing some image or other on the basalt base, while the stone in front was really an altar,—what the nature of the sacrifice might be I don't even guess. The round room may have been used for invocations and incantations. The pentagram looks like it. Any way it is all just about as queer and fin de siècle as I can well imagine. Look here, it is nearly twelve, let's dispose of ourselves, if we are going to hunt this thing down."
The four chambers on this floor of the old house were those said to be haunted, the wings being quite innocent, and, so far as we knew, the floors below. It was arranged that we should each occupy a room, leaving the doors open with the lights burning, and at the slightest cry or knock we were all to rush at once to the room from which the warning sound might come. There was no communication between the rooms to be sure, but, as the doors all opened into the corridor, every sound was plainly audible.
The last room fell to me, and I looked it over carefully.
It seemed innocent enough, a commonplace, square, rather lofty Parisian sleeping-room, finished in wood painted white, with a small marble mantel, a dusty floor of inlaid maple and cherry, walls hung with an ordinary French paper, apparently quite new, and two deeply embrasured windows looking out on the court.
I opened the swinging sash with some trouble, and sat down in the window seat with my lantern beside me trained on the only door, which gave on the corridor.