"So much for Room A," thought I.

The next most promising apartment was in the same corridor as the dining-room. It was called the Dark Parlor. Entering it, I found it dark indeed, but not because of lack of light, but because its hangings were all of a dismal red and its furniture of the blackest ebony. As this mainly consisted of shelves and cabinets placed against three of its four walls, the effect was gloomy indeed, and fully accounted for the name which the room had received. I lingered in it, however, longer than I had in the big drawing-room, chiefly because the shelves contained books.

Had anything better offered I might not have continued my explorations, but not seeing exactly how I could pass away the time more profitably, I chose out another key and began to search for the Flower Parlor. I found it beyond the dining-room in the same hall as the Dark Parlor.

It was, as I might have expected from the name, the brightest and most cheerful spot I had yet found in the whole house. The air in it was even good, as if sunshine and breeze had not been altogether shut out of it, yet I had no sooner taken one look at its flower-painted walls and pretty furniture than I felt an oppression difficult to account for. Something was wrong about this room. I am not superstitious and have no faith in premonitions, but once seized by a conviction, I have never known myself to be mistaken as to its import. Something was wrong about this room—what, it was my business to discover.

Letting in more light, I took a closer survey of the objects I had hitherto seen but dimly. They were many and somewhat contradictory in character. The floor was bare—the first bare floor I had come upon—but the shades in the windows, the chintz-covered lounges drawn up beside tables bestrewn with books and other objects of comfort and luxury, bespoke a place in common if not every-day use.

A faint smell of tobacco assured me in whose use, and from the minute I recognized that this was William's sanctum, my curiosity grew unbounded and I neglected nothing which would be likely to attract the keenest-eyed detective in Mr. Gryce's force. There were several things to be noted there: First, that this lumbering lout of a man read, but only on one topic—vivisection; secondly, that he was not a reader merely, for there were instruments in the cases heaped up on the tables about me, and in one corner—it made me a little sick, but I persevered in searching out the corners—a glass case with certain horrors in it which I took care to note, but which it is not necessary for me to describe. Another corner was blocked up by a closet which stood out in the room in a way to convince me it had been built in after the room was otherwise finished. As I crossed over to examine the door, which did not appear to me to be quite closed, I noticed on the floor at my feet a huge discoloration. This was the worst thing I had yet encountered, and while I did not feel quite justified in giving it a name, I could not but feel some regret for the worm-eaten rags of the drawing-room, which, after all, are more comfortable underfoot than bare boards with such suggestive marks upon them as these.

The door to the closet was, as I had expected, slightly ajar, a fact for which I was profoundly grateful, for, set it down to breeding or a natural recognition of other people's rights, I would have found it most difficult to turn the knob of a closet door, inspection of which had not been offered me.

But finding it open, I gave it just a little pull and found—well, it was a surprise, much more so than the sight of a skeleton would have been—that the whole interior was taken up by a small circular staircase such as you find in public libraries where the books are piled up in tiers. It stretched from the floor to the ceiling, and dark as it was I thought I detected the outlines of a trap-door by means of which communication was established with the room above. Anxious to be convinced of this, I consulted with myself as to what a detective would do in my place. The answer came readily enough: "Mount the stairs and feel for yourself whether there is a lock there." But my delicacy or—shall I acknowledge it for once?—an instinct of timidity seemed to restrain me, till a remembrance of Mr. Gryce's sarcastic look which I had seen honoring lesser occasions than these, came to nerve me, and I put foot on the stairs which had last been trod—by whom, shall I say? William? Let us hope by William, and William only.

Being tall, I had to mount but a few steps before reaching the ceiling. Pausing for breath, the air being close and the stairs steep, I reached up and felt for the hinge or clasp I had every reason to expect to encounter. I found it almost immediately, and, satisfied now that nothing but a board separated me from the room above, I tried that board with my finger and was astonished to feel it yield. As this was a wholly unexpected discovery I drew back and asked myself if it would be wise to pursue it to the point of raising this door, and had hardly settled the question in my own mind, when the sound of a voice raised in a soothing murmur, revealed the fact that the room above was not empty, and that I would be committing a grave indiscretion in thus tampering with a means of entrance possibly under the very eye of the person speaking.

If the voice I had heard had been all that had come to my ears, I might have ventured after a moment of hesitation to brave the displeasure of Miss Knollys by an attempt which would have at once satisfied me as to the correctness of the suspicions which were congealing my blood as I stood there, but another voice—the heavy and threatening voice of William—had broken into this murmur, and I knew that if I so much as awakened in him the least suspicion of my whereabouts, I would have to dread an anger that might not know where to stop.