He flew away whistling. The black goat walked round and round the moat, his eyes gleaming like living coals. The frogs croaked in the evening light, and above, in her chamber, Swanhild wept solitary and forsaken.

In the meantime, the boy left by the stork at the gloomy castle in the Bohemian forest had become a valiant knight, who knew well how to use his sword. Yet so strange a knight as he had never before sat in Walnut-tree Castle. This was the name of his ancestral home.

Since his father's death Wulf had lived quite alone in the ruined castle, for none of the servants would stay after the old knight died. But this did not trouble Wulf. He did not care to hunt the wild boar through the thicket, or kill the frightened stag. His chief pleasure was to stretch himself on the thick, soft moss, and gaze through the green branches of the forest trees at the blue heavens that smiled here and there in little flocks through the thick foliage. He also loved to seek for forest flowers—the blue were his favourites. Whence this preference he knew not, but he dreamt he had once looked into Swanhild's blue eyes. Or, when tired of these things, he would stand at one of the castle windows, gazing thoughtfully out into the blue distance. "Far away yonder," so ran his thoughts at these times, "where the blue heaven bends down to touch the earth, should I not find happiness there? Were it not better to journey abroad in search of happiness than to remain alone in this solitary castle, through whose walls the wind whistles, whilst owls and bats are now the only occupants of its once stately halls?"

But though longing to go out into the world, Wulf remained in the ruined castle, in obedience to an old command of one of his ancestors.

In the middle of the castle court there grew in the cleft of a rock a gigantic walnut tree. From it the castle had received its name. The nut from which this tree had sprung had been planted in olden times by one of Wulf's ancestors, who at the same time had carved these words on the rock:—

Where flourishes this tree, there shall my house remain.
While it stands, forsake it not to search abroad for fame;
But should the ancient glory from these halls e'er disappear,
Life from this tree shall make it shine once more quite bright and clear.

Their splendour had long since disappeared, and how the tree could restore it Wulf could not imagine; still, he remained obedient to the command.

"A CRAWLING MASS OF FROGS COVERED THE FLOOR" (p. 249).

One evening a mighty storm arose. Black clouds obscured the sky. The lightning flashed; the thunder rolled. The storm raged through the forest. The mouldering stones of the old castle slipped from their places, and the wind whistled through the gaps, and raged through the old rooms and passages. Then a flash of lightning! a clap of thunder! The castle was in ruins! Wulf escaped into the open air; before him lay the walnut tree, shivered by the lightning.