"King Arthur's sons o' merry Carlisle Were playing at the ba', And there was their sister, burd Ellen, I' the midst, amang them a'. Child Rowland kicked it wi' his foot, And keppit it wi' his knee; And aye as he played, out o'er them a'. O'er the kirk he gar'd it flee. Burd Ellen round about the aisle To seek the ba' has gane: But she bade lang, and ay langer, And she came na back again. They sought her east, they sought her west, They sought her up and down, And wae were the hearts in merry Carlisle, For she was nae gait found." Merlin, the warlock, being consulted, told them that burd Ellen was taken away by the fairies, and that it would be a dangerous task to recover her if they were not well instructed how to proceed. The instructions which Merlin gave were, that whoever undertook the quest for her should, after entering elfland, kill every person he met till he reached the royal apartments, and taste neither meat nor drink offered to them, for by doing otherwise they would come under the fairy spell, and never again get back to earth. Two of her brothers undertook the journey, but disobeyed the instructions of the warlock, and were retained in elfland. Child Rowland, her youngest brother, then arming himself with his father's claymore, _excalibar_--that never struck in vain--set out on the dangerous quest. Strictly observing the warlock's instructions, after asking his way to the king of elfland's castle of every servant he met, he, in accordance with these instructions, when he had received the desired information, slew the servant. The last fairy functionary he met was the hen-wife, who told him to go on a little further till he came to a round green hill surrounded with rings from the bottom to the top, then go round it _widershins_ (contrary to the sun) and every time he made the circuit, say--"Open door, open door, and let me come in," and on the third repetition of this incantation they would open, and he might then go in. Having received this information, he fulfilled his instructions, and slew the hen-wife. Then proceeding as directed, he soon reached the green hill, and made the circuit of it three times, repeating the words before mentioned. On the third repetition of the words the door opened, and he went in, the door closing behind him. "He proceeded through a long passage, where the air was soft and agreeably warm, like a May evening, as is all the air in elfland. The light was a sort of twilight or gloaming; but there were neither windows nor candles, and he knew not whence it came if it was not from the walls and roof, which were rough and arched like a grotto, and composed of a clear transparent rock incrusted with _sheep's silver_, and spar and various bright stones." At last he came to two lofty folding doors which stood ajar. Passing through these doors, he entered a large and spacious hall, the richness and brilliance of which