So Lady Katherine was carted off, bag and baggage, to the great turreted mansion on the borders of Wales, where her five sisters and her grandfatherly old lover were waiting for her, without ever having a chance of bidding Lord William farewell.
As for that noble youth, he mounted his horse, and called his men-at-arms together, and straightway rode away to Scotland, and never halted till he reached the old gray castle, three days' ride over the Border. When he arrived there he shut himself up in the great square tower where his own apartments were, and frightened his family by growing so pale and thin that they declared he must have caught some fever in England, and had come home to die. In vain the Earl, his father, tried to persuade him to ride out with him to the chase; he cared for nothing but to be left alone to sit in the dim light of his own room, and dream of his lost love.
Now Lord William was fond of all living things, horses, and dogs, and birds; but one pet he had, which he loved above all the others, and that was a gay gos-hawk which he had found caught in a snare, one day, and had set free, and tamed, and which always sat on a perch by his window.
One evening, when he was sitting dreaming sadly of the days at Windsor, stroking his favourite's plumage meanwhile, he was startled to hear the bird begin to speak. "What mischance hath befallen thee, my master?" it said, "that thou lookest so pale and unhappy. Hast been defeated in a tourney by some Southron loon, or dost still mourn for that fair maiden, the lovely Lady Katherine? Can I not help thee?"
Then a strange light shone in Lord William's eye, and he looked at the bird thoughtfully as it nestled closer to his heart.
"Thou shalt help me, my gay gos-hawk," he whispered, "for, for this reason, methinks, thou hast received the gift of speech. Thy wings are strong, and thou canst go where I cannot, and bring no harm to my love. Thou shalt carry a letter to my dear one, and bring back an answer," and in delight at the thought, the young man rose and walked up and down the room, the gos-hawk preening its wings on his shoulder, and crooning softly to itself.
"But how shall I know thy love?" it said at last.
"Ah, that is easy," answered Lord William. "Thou must fly up and down merrie England, especially where any great mansion is, and thou canst not mistake her. She is the fairest flower of all the fair flowers that that fair land contains. Her skin is white as milk, and the roses on her cheeks are red as blood. And, outside her chamber, by a little postern, there grows a nodding birch tree, the leaves of which dance in the slightest breeze, and thou must perch thereon, and sing thy sweetest, when she goes with her sisters and maids to hear Mass in the little chapel."
That night, when all the country folk were asleep, a gay gos-hawk flew out from a window in the square tower, and sped swiftly through the quiet air, on and on, above lonely houses, and sleeping towns, and when the sun rose it was still flying, hovering now and then over some great castle, or lordly manor house, but never resting long, never satisfied. Day and night it travelled, up and down the country, till at last it came one evening to a great mansion on the borders of Wales, in one side of which was a tiny postern, with a high latticed window near it, and by the door grew a birch tree, whose branches nodded up and down against the panes.
"Ah," said the gos-hawk to itself, "I will rest here." And it perched on a branch, and put its head under its wing, and slept till morning, for it was very tired. As soon as the sun rose, however, it was awake, with its bright eyes ready to see whatever was to be seen.