This poem might be dedicated to my friends, Sir G. Beaumont and Mr. Rogers, jointly. While we were making an excursion together in this part of the Lake District we heard that Mr. Glover, the artist, while lodging at Lyulph's Tower, had been disturbed by a loud shriek, and upon rising he had learnt that it had come from a young woman in the house who was in the habit of walking in her sleep. In that state she had gone downstairs, and, while attempting to open the outer door, either from some difficulty or the effect of the cold stone upon her feet, had uttered the cry which alarmed him. It seemed to us all that this might serve as a hint for a poem, and the story here told was constructed and soon after put into verse by me as it now stands.