We both scrutinized it closely. Yes, there was no mistake, the emerald had been fashioned into the form of a perfect crocodile, with open jaws, even the teeth being finely chiselled, a veritable marvel of the lapidary's art. While we were both looking at it puzzled, Liola's eyes suddenly became attracted by sight of something in the package I had just opened, and stooping swiftly, picked out of a mass of ornaments a magnificent diadem of some strange milk-coloured, opaque crystals of a character entirely strange to me. The stones were beautifully cut and polished, and although they glittered, even in the sickly rays of our lamp, they had no transparency. "Behold!" she cried in a voice full of awe, her clear eyes wide open in astonishment. "See what we have discovered!" I gazed at it, failing at first to notice what I afterwards recognised. "It is a crown," I said laughing. "A crown fit to grace thy brow!" "It is the great Rock Diadem of the Sanoms of Mo!" she answered. "See! It is surmounted by the vampire, our national emblem!" Then, I saw that upon the crest of the diadem was a single great diamond wonderfully chiselled to represent a bat with outspread wings, the device upon the banners of the mystic realm. "This," she continued, "is without doubt the historic crown of the first Naya. Though it hath never been seen for ages by the eyes of man, it was always popularly supposed to be preserved in the secret Treasure-house of the Sanoms, among the royal jewels. Many are the beliefs and superstitions regarding it. The stones are said to be the first pieces of rock chipped during the foundation of our City in the Clouds, which, as thou art aware, was her work a thousand years ago. Among the possessions of our royal house no relic hath been more venerated than this Rock Diadem of the Naya. How it came hither I know not. It is assuredly a mystery." "No," I answered, endeavouring to subdue my excitement. "We have now elucidated the mystery. The Treasure-house of Mo hath been entered by thieves, and the most valuable of the royal treasures stolen. The matter hath been kept secret from the people, but by our discovery the identity of the robbers is established beyond doubt, and we have thus recovered the wealth of a nation that was believed to be irretrievably lost." "But is all of this Omar's lost treasure?" she inquired, astounded at my statement, glancing at the huge heap of gold and jewels nearly as high as ourselves, and of such great value as to be utterly beyond computation. "Without doubt," I answered, stooping and picking up several jewelled trinkets, girdles and other ornaments, each bearing the sacred reptile or the vampire crest of royalty. "The recovery of these will, at least repay thy nation for the expedition sent against their enemy. Retain possession of the Rock Diadem of Mo, for thou hast discovered it, and with thine own hands shalt thou deliver it into the possession of the ruler who loveth thee."