Song of the Sorrowing Harp

On the east coast of Scotland, in a caslte hard by the North Sea, lived a lord who had two daughters, the elder one dark, the younger one fair. As sometimes happens, the maidens were rivals - although the younger one did not know it and the elder would not admit it - and something occured between them that caused a ghost to speak.
A young lord came courting. Quite properly, he paid formal addresses to the elder sister, but his eyes always strayed to the younger. He rode by her at the hunt; he danced with her in the hall. And all the while, the dark gaze of the elder sister followed him. She made no complaint, biding her time.
Early one morning, the elder maiden asked her sister to walk by the seashore. As they strolled, the fair sister talked guilelessly about the dashing visitor. The elder said little, but at a place where the waves beat against massive rocks, she acted. With a swift blow, she knocked her sister off balance and into the foaming sea.
The waves closed over the fair maiden's head and clawed at her hair with icy fingers. She rose gasping to the sister and screamed to her sister, but there was no response. She heard only the roaring of the waters and the sharp cries of gulls as they wheeled in the sky above. The dark sister stood on the shore rocks, motionless as a carved statue. With a steady, unperturbed gaze, she watched her sister's hopeless struggle. The young maiden sank, rose again for a moment and cried out pitifully, then sank again beneath the surging skirts of foam.
The dark one kept vigil there for a time, observing the violence of the waves with satisfaction. Then she ran home to her fathers hall and, weeping, told a false tale, saying how her sister had slipped on the rocks and drowned. The people searched the shore for her, but they could find no body. They made great mourning in the months that followed. Afterward, the young lord, bereft of the fair sister, sought consolation with the dark, and this was gladly given.
But the fair sister's body, drawn by wind and tide and cradled in the killing waves, drifted along the scottish shore and into a calm loch, far form her father's lands. A miller at the loch's edge spied the golden hair stirring beneath the surface and gently pulled the body from the water.
It happened that a wandering minstrel - a harper famed throughout Scotland - was staying with the miller. He helped the man giver her burial, and moved by her beauty, he cut three strands of the golden hair and strung them into his harp.
Eventually the harper took leave of the miller and went on his way, traveling from castle to castle to sing before the lords of the land. In months that followed, the harp played for the minstrel with a tenderness that brought tears to the eyes of its listeners, and the harper grew to cherish the golden strings.
At length he came to the stronghold of the maiden's father, although he did not know it for what it was. The minstrel was welcome and feasted, as was the custom then. In the evening, when the fires were lit and the flames cast flickering shadows in the hall, the man drew out his harp and set it before him, making ready to sing. The dark sister settled on a bench to listen, flanked by her father and by the young lord she loved.
But before the harper could touch them, the golden strings shimmered in the firelight; they trembled of their own accord. A sweet familiar voice eddied around the company, and when the dark sister heard the wods it sang, her face grew pale and tight. Her fate had come upon her, and she well knew it.
"Farewell to the lord my father," sang the harp softly. "Farewell to my lady mother." The harp paused, and the company watched ot in horrified silence. Then the strings spoke once more, loud and wailing this time.

"And woe to my sister, who murdered me."