Allusion has already been made to the glittering objects upon masts that stood upon the terrace of the nearer building. It dawned upon Mr. Cave, after regarding one of these masts very fixedly on one particularly vivid day that the glittering object there was a crystal exactly like that into which he peered. And a still more careful scrutiny convinced him that each one in a vista of nearly twenty carried a similar object.
Occasionally one of the large flying creatures would flutter up to one, and folding its wings and coiling a number of its tentacles about the mast, would regard the crystal fixedly for a space,—sometimes for as long as fifteen minutes. And a series of observations, made at the suggestion of Mr. Wace, convinced both watchers that, so far as this visionary world was concerned, the crystal into which they peered actually stood at the summit of the end-most mast on the terrace, and that on one occasion at least one of these inhabitants of this other world had looked into Mr. Cave's face while he was making these observations.
So much for the essential facts of this very singular story. Unless we dismiss it all as the ingenious fabrication of Mr. Wace, we have to believe one of two things: either that Mr. Cave's crystal was in two worlds at once, and that while it was carried about in one, it remained stationary in the other, which seems altogether absurd; or else that it had some peculiar relation of sympathy with another and exactly similar crystal in this other world, so that what was seen in the interior of the one in this world was, under suitable conditions, visible to an observer in the corresponding crystal in the other world; and vice versa. At present, indeed, we do not know of any way in which two crystals could so come en rapport, but nowadays we know
