Gorlois, the husband of Igraine, had been the possessor of two castles, Tintagel and Terabyl (or Damaliock), which may be judged to have been at no great distance from one another. Terabyl is untraceable, though it has been suggested that while Tintagel Castle was solely upon the peninsula (Barras Head) which juts into the sea, Terabyl was the castle upon the mainland. This theory is untenable. It is only in comparatively recent times, with the widening of the chasm between the peninsula and the mainland, that a division of any importance can be noticed; and it is safe to assume that there was never more than one castle at Tintagel. The rent in the rocks was spanned by a huge bridge, as the crenellated walls now reaching to the edge on either side and in a direct line with each other plainly attest. Terabyl, in which the Duke entrenched himself when Uther Pendragon brought his hosts against him, was evidently further inland than Tintagel, and the latter, distinctly avowed to be “ten miles hence,” was selected as the refuge for Igraine. Uther, marching southward from Camelot, reached Terabyl first and laid siege to it; to reach Igraine at Tintagel he had still to ride some distance. “The Duke of Tintagil espied how the king rode from the siege of Terrabil, and, therefore, that night he issued out of the castle at a posterne”--(Terabyl was noted for its “many issues and pasternes out”)--“for to have distressed the king’s host. And so, through his own issue, the Duke himself was slain or ever the king came at the castle of Tintagil.” Geoffrey of Monmouth calls Terabyl “castellum Dimilioc,” but under this name it is no less a mystery. As it receives incidental mention only twice afterwards we may well be content to rank Terabyl among the cities of romance, the names of which alone existed. It may have been as unsubstantial as the enchanted cities created by mysterious maidens for their courteous and faithful lovers, which cities vanished in a night if vows were broken or false words uttered.