The prosperity of Egypt during the Middle Empire was continued under the thirteenth dynasty of sixty Theban kings, to whom Manetho assigns the period of 453 years. Less is known of this period than of the great twelfth dynasty which preceded it, but a sufficient number of monuments have been preserved to confirm the general accuracy of Manetho's statements. A colossal statue of the twenty-fourth or twenty-fifth king, Sevckhotef VI., found on the island of Argo near Dongola, shows that the frontier fixed by the conquests of Amenemes at Semneh, had not only been maintained, but extended nearly fifty leagues to the south into the heart of Ethiopia; and another statue found at Tanis shows that the rule of this dynasty was firmly established in Lower Egypt. But the scarcity of the monuments, and the inferior execution of the works of art, show that this long dynasty was one of gradual decline, and the rise of the next or fourteenth dynasty at Xois, transferring the seat of power from Thebes to the Delta, points to civil wars and revolutions. [Illustration: FELLAH WOMAN AND HEAD OF SECOND HYKSOS STATUE. (From photograph by Naville in _Harper's Magazine_.)] [Illustration: HYKSOS SPHYNX. (From photograph by Naville in _Harper's Magazine_.)] Manetho assigns seventy-five kings and 484 years to the fourteenth dynasty, and it is to this period that a good deal of uncertainty attaches, for there are no monuments, and nothing to confirm Manetho's lists, except a number of unknown names of kings of the dynasty enumerated among the royal ancestors in the Papyrus of Turin. If Manetho's figures are correct, the period must have been one of anarchy and civil war, for the average duration of each reign is less than six and a half years, while that of the twelfth and other well-known historical dynasties exceeds thirty years. The same remark applies to the thirteenth dynasty, the reigns of whose sixty kings average only seven and a half years each, and it is probable that the end of this dynasty and the whole of the fourteenth was a period of anarchy, during which so-called kings rose and fell in rapid succession, as in the case of our own dynasties of Lancaster and York, and the annals are so confused that the dates are unreliable. What is certain is that the great Middle Empire sank rapidly into a state of anarchy and impotence, which prepared the way for a great catastrophe. This catastrophe came in the form of an invasion of foreigners, who, about the year 2000 B.C., broke through the eastern frontier of the Delta, and apparently without much resistance, conquered the whole of Lower Egypt up to Memphis, and reduced the princes of the Upper Provinces to a state of vassalage. There is considerable doubt who these invaders were, who were known as Hyksos or Shepherd Kings. They consisted probably, mainly of nomad tribes of Canaanites, Arabians, and other Semitic races, but the Turanian Hittites seem to have been associated with them, and the leaders