The cruelty of his rule, and the favour he showed to his pagan friends and supporters, earned for Vortigern such general and intense hatred among the Britons, that he determined to erect an impregnable fortress which might furnish him with a safe refuge against conspirators and foes. Accordingly, having chosen what seemed to him to be a suitable site on Salisbury Plain, he gathered together many thousands of workmen and ordered them forthwith to begin the erection of his castle. As the tyrant was in the habit of punishing disobedience or dilatoriness with remorseless severity, while he was also lavish in the rewards he gave for zealous service, the masons set to work with a will, and at the close of the first day had made such progress that the ground had been excavated, the foundation laid, and a wall of immense thickness had risen to the height of some feet. But what was the astonishment and awe of the workmen, when on the following morning they assembled at the scene of their labours, to find that the wall had been levelled with the ground, and all that remained of it was nothing more than shapeless piles of stone and mortar! Quite unable to comprehend this extraordinary phenomenon, the builders made the best of the business by once more setting to work with such energy that at nightfall the wall had again risen breast-high. But all their efforts had been expended to no purpose, for the next day it was found that the wall had once more been overthrown. In vain did they examine the site to discover the cause of the mystery. Nothing that could account for it was to be found; so the masons proceeded to inform the king of the inexplicable difficulty that had arisen in the carrying out of his design.
Vortigern hurried to the spot, and investigated the circumstances for himself, but departed no wiser than he had come. The mystery, however, gave him great anxiety, for he could not help connecting it with the treachery by which he had obtained the throne, and the many crimes he had since perpetrated. He therefore summoned his astrologers, and informed them that they must either discover the reason why his castle-wall fell down as soon as it was built up, or be put to death. Incited by this unpleasant alternative, the wise men closely studied the aspect of the heavens, and then told the king that some few years before a boy had been bom in England without an earthly father. If this boy could be found, put to death, and the foundations of the castle smeared with his blood, there would be no further difficulty about its subsequent progress.
Vortigern at once sent emissaries to all parts of the country to find the wonderful boy; but to make sure that the astrologers should not escape his vengeance if the messengers were unsuccessful in their search, he threw them all into prison.
Astrology must, however, have been better understood in those days than it is now, for the wise men had interpreted the planetary revelations with perfect accuracy. The boy for whom the servants of Vortigern were searching did in fact exist, and was none other than the afterwards famous wizard and prophet Merlin, whose mother was a British maiden, while his father was the Arch-fiend, who had hoped through his agency to carry out his evil purposes against mankind. This design had, however, been thwarted by a pious hermit named Blaize, who had taken the boy’s mother under his protection, and had baptized the infant at the moment of his birth, so that the supernatural gifts which he inherited from his demon-father were enlisted on the side of good, instead of being employed in the service of the evil one. Endowed from his birth with the power of foretelling the future, and with the knowledge of all mysteries, Merlin had been thus far content to lead the life of other children, well knowing that the time was at hand when he must play a more important part. He now made himself known to one of Vortigern’s messengers, whom he astonished by informing him of the object of his search. He added that though the astrologers had rightly interpreted the portent of the heavens, his death was not necessary for the erection of Vortigern’s castle; for on this point the wise men had been misled by the devices of Satan, who, since Merlin was now out of his power, was anxious for his destruction. The boy gave the king’s emissary to understand that when brought into Vortigern’s presence he would explain the whole mystery. The royal officer was naturally well pleased to have achieved the object of his mission; and any doubts he might still have entertained about the reality of Merlin’s pretensions to supernatural powers were dispelled by the extraordinary proofs which the child furnished during their journey to Winchester, where Vortigern then held his court. The party were making their way through the busy streets of a town, when Merlin broke into loud laughter. When asked the reason, he pointed out a young man who was bargaining for a pair of shoes, and explained that what had aroused his mirth was the extreme eagerness to secure substantial foot-gear shown by one who would not live to wear the shoes he had bought. As the young man was to all appearance in robust health, Merlin’s companions received this statement with incredulity; but before they had gone many paces further, they heard an uproar in the street behind them, and on inquiry they found that it was due to the fact that the man Merlin had shown to them had suddenly-dropped down dead. This, and other evidences of the prescience of the young seer, convinced Vortigern’s messenger, who hastened to conduct the wonderful boy into the presence of the king.
Vortigern received Merlin with a pomp which in no wise disturbed the philosophical serenity of the child, and in due course conducted him to the place selected as the site of the castle, where he described the extraordinary failure of the attempts that had thus far been made to build it, and inquired the reason.
“Sir King,” answered Merlin, “the reason is this. Below the place where your workmen have sought to lay the foundations of the wall there are two large and deep pools of water. At the bottom of these lie two huge stones, which cover the lairs of two gigantic serpents, the like of which none of your subjects have ever before set eyes on. One of these serpents is milk-white in hue, the other red as blood. They sleep all through the day; but every night they engage in a furious combat, which is without result, because they have not sufficient space wherein to move. The walls built by your masons were overthrown because the very earth was shaken by the struggles of the serpents. But if you cause the water to be drained away, and the stones to be raised, the serpents will be able to settle their dispute, and there will then be no hindrance to the building of the castle.”
Overjoyed at this information, Vortigern at once gave the necessary orders. His army of workmen was speedily engaged in digging, and presently the two pools of water described by Merlin were disclosed. The water having been removed, the stones were laid bare; and when, with infinite difficulty, they had been uplifted, there lay the two serpents, side by side. Both were of enormous size, and covered with shining scales, while fire flashed from their mouths. They were not only distinguished by the difference of colour of which the young wizard had spoken, but the white serpent had two heads. As soon as the light of day fell upon them, they awoke from the torpor in which they had been sunk, uncoiled their monstrous folds, and, to the terror of the vast multitude assembled—amongst whom Merlin was the only unconcerned spectator—they began a furious conflict, which lasted till night. The fire which they vomited forth against each other flashed through the air like lightning, and their huge jaws dripped with their black blood. At first the red serpent seemed to gain the advantage; but as the day wore on the white one waxed in strength, and at last he beat his antagonist to the ground, and then descended upon him with such fury as to crush him into dust. The white serpent then himself disappeared, and was never again seen by mortal man.
The literal fulfilment of Merlin’s prediction naturally inspired Vortigern with the utmost confidence in the wisdom of the prophet, more especially as the erection of the castle thenceforth proceeded without let or hindrance. He was at once installed as the chief counsellor of the king; but this high promotion, which he himself accepted with the taciturn indifference which was his ordinary demeanour, raised him many enemies, and one of these represented to Vortigern that, as Merlin knew everything, he would certainly be able to explain the significance of the terrific, fight between the two serpents, which must doubtless have some deep hidden meaning. The king, whose conscience was always stinging him, eagerly grasped at the idea, and Merlin was forthwith sent for and questioned on the subject. He remained persistently silent, however, until Vortigern threatened him with instant death if he did not answer.
“Know, O King,” said the seer, “that what you threaten is as far beyond your power as it was to discover the reason of the overthrow of your castle wall. Save by my own will, no man of woman bom can injure me. Since, however, you are resolved to know the meaning of the combat between the two serpents, I will reveal it. The red dragon which you saw overthrown and destroyed represented yourself; the white one symbolized the two princes Aurelius and Uther Pendragon, the sons of King Constans, who are the rightful rulers of this realm. They are coming from Little Britain with a mighty armament; they will utterly defeat you in battle; and when, with your family and the Saxon Hengist, you take refuge in the strong castle you have built, you will perish there by fire, even as the red serpent perished.”
At this appalling forecast of his fate, Vortigern was overcome by despair. But bethinking him of Merlin’s great craft and wisdom, he turned fiercely upon him and demanded counsel as to how he should evade the approaching ruin.