The astrologer immediately set to work to gratify the wishes of the monarch. He caused a great tower to be erected upon the top of the royal palace, which stood on the brow of the hill of the Albaycin. The tower was built of stones brought from Egypt, and taken, it is said, from one of the pyramids. In the upper part of the tower was a circular hall, with windows looking towards every point of the compass, and before each window was a table, on which was arranged, as on a chess-board, a mimic army of horse and foot, with the effigy of the potentate that ruled in that direction, all carved of wood. To each of these tables there was a small lance, no bigger than a bodkin, on which were engraved certain Chaldaic characters. This hall was kept constantly closed, by a gate of brass, with a great lock of steel, the key of which was in possession of the king. On the top of the tower was a bronze figure of a Moorish horseman, fixed on a pivot, with a shield on one arm, and his lance elevated perpendicularly. The face of this horseman was towards the city, as if keeping guard over it; but if any foe were at hand, the figure would turn in that direction, and would level the lance as if for action. When this talisman was finished, Aben Habuz was all impatient to try its virtues, and longed as ardently for an invasion as he had ever sighed after repose. His desire was soon gratified. Tidings were brought, early one morning, by the sentinel appointed to watch the tower, that the face of the bronze horseman was turned towards the mountains of Elvira, and that his lance pointed directly against the Pass of Lope. “Let the drums and trumpets sound to arms, and all Granada be put on the alert,” said Aben Habuz. “O king,” said the astrologer, “let not your city be disquieted, nor your warriors called to arms; we need no aid of force to deliver you from your enemies. Dismiss your attendants, and let us proceed alone to the secret hall of the tower.” The ancient Aben Habuz mounted the staircase of the tower, leaning on the arm of the still more ancient Ibrahim Ebn Abu Ayub. They unlocked the brazen door and entered. The window that looked towards the Pass of Lope was open. “In this direction,” said the astrologer, “lies the danger; approach, O king, and behold the mystery of the table.” King Aben Habuz approached the seeming chess-board, on which were arranged the small wooden effigies, when, to his surprise, he perceived that they were all in motion. The horses pranced and curveted, the warriors brandished their weapons, and there was a faint sound of drums and trumpets, and the clang of arms, and neighing of steeds; but all no louder, nor more distinct, than the hum of the bee, or the summer-fly, in the drowsy ear of him who lies at noontide in the shade.