For many a long year the old tower had stood empty, while its owner, Sir Michael Scott, one of the most learned men who ever lived, wandered in distant lands, far across the sea. He had been a mere boy when he left it, to study at Durham and Oxford: then the love of learning had carried him first of all to Paris, where he had been famed for his skill in mathematics; then to Italy, and finally to Spain, where he had studied alchemy under the Moors, and had learned from them, so 'twas said, much of the magic of the East, so that he had power over spirits, and could command them to come and go at his bidding, and could read the stars, and cure the sick, and do many other wonderful things, which made all men regard him as a wizard. And now that he had come back to his old home once more, the country folk avoided him, and gazed with awe at the great square tower where, they said, he spent most of his time, practising his magic art, and holding converse with the powers of darkness. The King, on the other hand, thought much of this most learned knight, and would fain have seen more of him at his court in Edinburgh, but Sir Michael loved the country best, and spent most of his time there, writing, or reading, or making experiments. This evening, however, he was not in his tower, but was sitting by the side of the Ettrick, studying with deepest interest all the sights and sounds of nature which were going on around him. For he loved nature, this studious, quiet, middle-aged man, and the sight of the little minnows darting about in the water, and the trouts hiding under the stones, and the partridges coming whirring across the cornfields, gave him as much pleasure as all the wonderful sights which he had seen in far-off lands. Suddenly he raised his head and listened. Far away in the distance he seemed to hear the sound of trumpets, and the "thud," "thud" of horses' hoofs, as if a body of men were riding quickly towards him. "Some strangers are approaching," he said to himself, "and if I am not mistaken they are soldiers. I will hasten home and learn their errand. Mayhap it is a message from his Majesty the King." He rose to his feet slowly, for his limbs were somewhat cramped with sitting, and walked with stately dignity to the tower. The riders had just arrived, and, as he expected, they bore a message from the King. As he approached, a knight clad in full armour rode forward, preceded by a man-at-arms, and, bending low over his horse's neck, presented to him a parchment packet, sealed with the Royal Seal.