In the legend of Merlin and Vortigern we find the Dragon so completely developed into a merely warrior-like symbol that its moral character has to be determined by its colour. As in the two armies of serpents seen by Zoroaster, in Persian legends, which fought in the air, the victory of the white over the black foreshowing the triumph of Ormuzd over Ahriman, the tyranny of Vortigern is represented by a red dragon, while Aurelius and Uther are the two heads of a white dragon. Merlin, about to be buried alive, in pursuance of the astrologer's declaration to Vortigern that so only would his ever-falling wall stand firm, had revealed that the recurring disaster was caused by the struggle of these two dragons underground. When the monsters were unearthed they fought terribly, until the white one Hent the red with all his might, And to the ground he him cast, And, with the fire of his blast, Altogether brent the red, That never of him was founden shred; But dust upon the ground he lay. The white dragon vanished and was seen no more; but the tyrant Vortigern fulfilled the fate of the red dragon, being burnt in his castle near Salisbury. These two dragons met again, however, as red and white roses. Many developments corresponding to these might be cited. One indeed bears a startling resemblance to our English legends. Of King Nuat Meiamoun, whose conquest of Egypt is placed by G. Maspero about B.C. 664-654, the Ethiopian 'Stele of the Dream' relates:--'His Majesty beheld a dream in the night, two snakes, one to his right, the other to his left, (and) when His Majesty awoke ... he said: 'Explain these things to me on the moment,' and lo! they explained it to him, saying: 'Thou wilt have the Southern lands, and seize the Northern, and the two crowns will be put on thy head, (for) there is given unto thee the earth in all its width and its breadth.' These two snakes were probably suggested by the uræi of the Egyptian diadem.