—six courses of many hundred arches ran around the building, one above the other; and between each pair a course, as it seemed, of plain worked stone, though I afterwards found it to be sculptured in low relief. The arches were cut in deep relief and backed with undressed stone. The lowest course of all, however, was quite plain, having neither arches nor frieze; but at intervals corresponding to the eight major points of the compass—so far as I who saw but one side of it could judge—pairs of gigantic stone figures supported archways pierced in the wall; or sluices, rather, since from every archway but one a full stream of water issued and poured down the sides of the hill. The one dry archway was that which faced us with open gate, and towards which Harry led the way; for oppression and terror now weighted my hand as with lead upon Grey Sultan's rein.
Harry, however, rode forward resolutely, dismounted almost in the very shadow of the great arch, and waited, smoothing his mare's neck. But for the invitation in his eyes, which were solemn, yet without a trace of fear, I had never dared that last hundred yards. For above the rush of waters I heard now a confused sound within the building—the thud and clanking of heavy machinery, and at intervals a human groan; and looking up I saw that the long friezes in bas-relief represented men and women tortured and torturing with all conceivable variety of method and circumstance—flayed, racked,
