A contention arose between Michael Scott and the friar as to which of them could perform the most wonderful feats; and when the former discovered that he was in conversation with no less a personage than the Primate of Douay, author of the book of arts, he was much pleased. By means of a curious lantern, he made it appear that the mountain Cape-Law was rent and divided into three parts. This was only an optical delusion, but he in reality blew poor Gourlay into the air by an explosion of gunpowder, the composition and power of which were unknown to the wizard, or to any one except the friar. The master could not bear the idea of being outdone by any one. He strode the floor in gloomy indignation. "Look," he shouted, "at that mountain on the east. It is known to you all--the great hill of Eildon. You know and see that it is one round, smooth, and unbroken cone." He then gave three knocks with his heel on the floor, and called the names of his three pages, Prig, Prim, and Pricker. As at other times, these infernal spirits were before him, exclaiming, "Work, master, work; what work now?" "Look at that mountain yclept the hill of Eildon. Go and twist me it into three." The imps looked with Satanic glare. "The hill is granite," said one. "And five arrows' flight high," said another. "And seventy round the base," said the first. "All the power of earth and hell to boot are unmeet to the task," added the third. In an imperious manner, the master declared the thing must be done. "I know my conditions; they are sealed and subscribed, and I am not to be disobeyed," continued he. The three pages began singing: "Pick and spade To our aid! Flaught and flail, Fire and hail: Winds arise, and tempests brattle, And, if you will, the thunders rattle. Come away, Elfin grey, Much to do ere break of day! Come with spade, and sieve, and shovel; Come with roar, and rout, and revel; Come with crow, and come with crane, Strength of steed, and weight of wain. Crash of rock, and roar of river, And, if you will, with thunders shiver! Come away, Elfin grey; Much to do ere break of day." As they sang the last line, they sped away, in the forms of three crows, toward Eildon Hill. That night was a dreadful one. A storm burst forth in all its fury, sweeping over hill and dale. The woods roared and crashed before the blast, and a driving rain dashed with such violence on the earth, that it seemed as if a thousand cataracts poured from the western heaven to mix with the tempest below. Now and again eldritch shrieks, as of some one perishing, were heard, and then the voices of angry spirits, yelling through the tempest, reached the ear. One of the inmates of the castle was reminded, by the raging storm, of the warlocks' hymn: