by the portrait, while the sides were four feet up the oaken wainscot which surrounded the whole room behind the tapestry, and from thence to the ceiling, plaster. The mantelpiece and fireplace were of a dark slaty stone, and of brick, respectively.
Archibald fixed upon what he considered the most effective positions for his heads--just above the level of the wainscot, and near enough to the mantelpiece not to be interfered with by the tapestry. He nailed up one of them on the left-hand side, the nails penetrating with just sufficient resistance in the firm plaster; and then, measuring carefully to the corresponding point on the right-hand side, he proceeded to affix the other head there. But the nail, on this occasion, could not be made to go in; and on his attempting to force it with a heavier stroke of the hammer, it bent beneath the blow, and the hammer came sharply into contact with the white surface of the wall, producing a clinking sound as from an impact on metal.
A brief investigation now revealed the fact that a circular disk of iron, about three inches in diameter, and painted white to match the plaster, was here let into the wall. What could be the object of it? With a fresh nail the boy began to scratch off the paint from the surface of the disk, in order to determine whether it were actually iron, or some other metal; in so doing a small movable lid, like the screen of a keyhole, was pushed aside, disclosing a little round aperture underneath. Archibald pushed the nail into it, thereby informing himself that the hole went straight into the wall, for a distance greater than the length of the nail; but how much greater, and what was at the end of it, he could only conjecture.
We must imagine him now standing upon a chair, with the nail in his hand, casting about in his mind for some means of probing this mysterious and unexpected hole to the bottom. At this juncture he happens to glance upward, and meets the intent regard of his pictured ancestor, who seems to have been silently watching him all this time, and only to be prevented by unavoidable circumstances from speaking out and telling him what to do next. And there is that constant forefinger pointing--at what? At the cavity in the floor, of course; but not of that alone; for if you observe, this same new-found hole in the wall is a third point in the straight line between the end of the forefinger and the hiding-place of the silver rod; furthermore, the hole is, as nearly as can be estimated without actual measurement, three feet distant from the forefinger, and five feet from the rod; the problem of three above and five below has solved itself in the twinkling of an eye, and it only remains to act accordingly!
Archibald sprang to the floor in no small excitement; but the first thing he did was to see that both his doors were securely fastened. Then he advanced upon the mystery with heightened color and beating heart, his imagination revelling in the wildest forecasts of what might be in store; and anon turning him cold with sickening apprehension lest it should prove to be nothing after all! But no--something there must be, some buried secret, now to live once more for him, and for him only: the secret, whereof dim legends had come down through the obscurity of two hundred years; the secret, too, of old Sir Charles in the frame yonder, the man of magic repute. What could it be? Some talisman--some volume of the Black Art perhaps--which would enable him to vanish at will into thin air, and to travel with the speed of a wish from place to place--to become a veritable enchanter, endowed with all supernatural powers. With hands slightly tremulous from eagerness he pushed back the bit of plank and drew forth the silver rod; then mounted on the chair and applied it to the hole, which it fitted accurately. Before pushing it home he paused a moment.
In all the stories he had read, the possessors of magic secrets had acquired the same, only in exchange for something supposed to be equally valuable, namely, their own souls. It was not to be expected that Archibald would be able to modify the terms of the bargain in his own case: was he, then, prepared to pay the price? Every human being, probably, is called upon to give a more or less direct answer to this question at some epoch of their lives: and were it not for curiosity and scepticism, and an unwillingness to profit by the experience of others, very likely that answer might be more often favorable to virtue than it actually is. Archibald did not hesitate long. Whether he decided to disbelieve in any danger; whether he resolved to brave it whatever it might be; or whether, having got thus far, he had not sufficient control over his inclinations to resist going further--at all events he drew in his breath, set his boyish lips, and drove the silver rod into the aperture with right good will.
It turned slowly as it entered, the curve of its spiral evidently following the corresponding windings of the hole. Inward it twisted like a snake, until only some two inches still projected. As the searcher after forbidden mysteries continued to press, something seemed to give way within; and at the same instant an odd, shuffling sound caused him to glance sharply over his left shoulder.
What was the matter with the mantelpiece? The whole of the right jamb seemed to have started forward nearly a foot, while the left jamb had retired by a corresponding distance into the wall; the hearth, with the fire burning upon it, remained meanwhile undisturbed. At first Archibald imagined that the mantelpiece was going to fall, perhaps bringing down the whole partition with it; but when he had got over the first shock of surprise sufficiently to make an examination, he found that the entire structure of massive gray-stone was swung upon a concealed pivot, round which it turned independently of the brickwork of the fireplace. The silver rod had released the spring by which the mechanism was held in check, and an unsuspected doorway was thus revealed, opening into the very substance of the apparently solid wall. On getting down from his chair he had no difficulty in pulling forward the jamb far enough to satisfy himself that there was a cavity of unknown extent behind. And from out of this cavity breathed a strange dry air, like the sigh of a mummy. As for the darkness in there, it was almost substantial as of the central chamber in the great pyramid.
Archibald may well have had some misgivings, for he was only a boy, and this happened more than sixty years ago, when ghosts and goblins had not come to be considered such indefensible humbugs as they are now. Nevertheless, he was of a singularly intrepid temperament, and besides he had passed the turning point in this adventure a few minutes ago. Nothing, therefore, would have turned him back now. Come what might of it, he would see this business to an end.
It was, however, impossible to see anything without a light; it would be necessary to fetch one of the rush candles from the table in the corridor. It was a matter of half a minute for the boy to go and return; then he edged himself through the opening, and was standing in a kind of vaulted tunnel, directly behind the fireplace, the warmth of which he could feel when he laid his hand on the bricks on that side. The tunnel, which extended along the interior of the wall toward the left, was about six feet in height by two and a half in width. Archibald could walk in it quite easily.
But, in the first place, he scrutinized the mechanism of the revolving mantelpiece. It was an extremely ingenious and yet simple device, and so accurately fitted in all its parts that, after so many years, they still worked together almost as smoothly as when new. After Archibald had poured a little of his gun-oil into the joints of the hinges, and along the grooves, he found that heavy stone structure would open and close as noiselessly and easily as his own jaws. It could be opened from the inside by using the silver rod in a hole corresponding to that on the outside; and, having practised this opening and shutting until he was satisfied that he was thoroughly master of the process, he put the rod in his pocket, pulled the jamb gently together behind him, and, candle in hand, set forth along the tunnel.
After walking ten paces, he came face-up against a wall lying at right angles to the direction in which he had been moving. Peering cautiously round the corner, he saw, at the end of a shallow embrasure, a ponderous door of dark wood, braced with iron, standing partly open, with a key in the keyhole, as if some one had just come out, and, in his haste, had forgotten to shut and lock the door behind him. Archibald now slowly opened it to its full extent; it creaked as it moved, and the draught of air made his candle flicker, and caused strange shadows to dance for a moment in the unexplored void beyond. In another breath Archibald had crossed the threshold and arrived at the goal of his pilgrimage.
At first
