the prediction. So also, in two other cases, his prophecies came true.
When he knew of Merlin's arrival, Vortigern rode forward to meet him in great magnificence. The following day Vortigern conducted the child to the site of his projected castle. Merlin, before answering, wished to be confronted with the astronomers who had thirsted for his blood, and asked them why they had counselled the King to slay him. At the same time he revealed to them that they dreaded him, and that they feared he might cause their death if he should live, and therefore they had devised to kill him. He then asked the permission of the King to question them as to the cause of the destruction of the castle, and why it could not be built; and requested that if they should not know it, whilst he did so, he might then do with them what they thought to do with him. The King consented to every thing he asked, and the astronomers felt abashed, and declared humbly that their art had certainly deceived them, but the signs seen in the heavens could not admit another interpretation. They also did not know the cause of the tumbling down of the walls. Merlin proceeded then to say that immediately below the soil were two deep pools of water; below the water two huge stones, and below the stones two enormous serpents, the one white as milk, the other red as fire; that they slept during the day, but regularly quarrelled every night, and by their efforts to destroy each other occasioned an earthquake which demolished the building. Merlin ordered the workmen to dig away the earth. The water was soon discovered, and, by sinking wells, was wholly drawn out. The two stones were found at the bottom, and being removed, exhibited the tremendous serpents, which looked like fiends of hell. The struggle between the two began, and ended with the victory of the white serpent, which, however, disappeared after the combat. Merlin explained
