Costello got up from the grave, understanding nothing but that he had made his beloved angry and that she wished him to go, and wading out into the lake, began to swim. He swam on and on, but his limbs were too weary to keep him afloat, and her anger was heavy about him, and when he had gone a little way he sank without a struggle, like a man passing into sleep and dreams. The next day a poor fisherman found him among the reeds upon the lake shore, lying upon the white lake sand with his arms flung out as though he lay upon a rood, and carried him to his own house. And the very poor lamented over him and sang the keen, and when the time had come, laid him in the Abbey on Insula Trinitatis with only the ruined altar between him and Dermott's daughter, and planted above them two ash-trees that in after days wove their branches together and mingled their trembling leaves.