Page:A book of folk-lore (1913).djvu/235

232 The bridge was thrown across the ravine, and the Evil One stood beyond bowing and beckoning to the old woman to come over and try it. But she was too clever to do that. She had noticed his left leg whilst he was engaged in the construction, and saw that the knee was behind in place of in front, and for a foot he had a hoof.

Precisely the same story is told of St. Cadoc’s Causeway, in Brittany. All these stories derive from one source, that it was held necessary to offer a sacrifice when either a house or a bridge or any public building was erected. The usual way was to lay the victim under the foundation stone. I have dealt with this subject already, so that I will but touch on it here. In the ballad of the Cout of Keeldar, in the minstrelsy of the Border, it is said,—

In a note Sir Walter Scott alludes to the tradition that the foundation stones of Pictish raths were bathed in human gore.