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.