It was this.

Keane said that he was returning home slowly after his sister's funeral, looking on the ground, when he was suddenly roused by hearing the tramping of horses, and on looking up he saw a large troop of riders coming towards him two and two.

What was his horror when he saw that one of the two foremost was the sister whom he had that day seen buried at Greenlaw! On looking further he saw many relations and friends long before dead; but when the two last horses came up to him he saw that one was mounted by a dark man whose face he had never seen before.

He led the other horse, which, though saddled and bridled, was riderless, and on this horse the whole company wanted to compel Keane to get.

He struggled violently, he said, for some time, and at last got off by promising that one of his family should go instead of him.
"There still lives at Longformacus his remaining son Robert; he has the same horror of the Foul Fords that his brother had, and will not speak, nor allow any one to speak to him on the subject.
"Three or four years ago a herd of the name of Burton was found dead within a short distance of the spot, without any apparent cause for his death." {272}.