No sooner had the maiden heard this than she gave a great cry of anguish and cried out: 'Alas, then, thou art my brother! For I am Kalervo's daughter, who wandered off one day to pick berries and never returned,' and with these words she jumped from the sledge and hastened weeping to a river near by. There she plunged beneath the icy waters and was never seen again alive, but her lifeless body floated down to the black river of Tuoni.
But Kullervo unharnessed his steed from the sledge and galloped off home and there related to his mother all that had occurred, and how he had unknowingly been the cause of his sister's death, and when he had finished his story, he added: 'Woe is me that I did not die long ago. But now I must hasten off to gloomy Pohjola, there to slay the wicked Untamo, and myself be also slain.' Having said this he also made ready his armour and ground his broadsword until it was as sharp as a razor. But before he went, he asked his father and brother and sister and mother if they would grieve when they heard of his death. And all but his mother told him that they would never sorrow over the death of such an evil fellow. But his mother alone said that, in spite of all the evil he had done, her mother's love was still strong and that she would weep over him for years to come.
Thereupon Kullervo went forth on his journey to the icy Northland, but before he had gone far a messenger came and told him that his father was dead and asked Kullervo to come back and help bury him, but he would not come. And a little later he was told of the death of his brother and then of his sister, and last of all of his mother. Still he refused to come to bury any of them, only, when the news of his mother's death reached him, he mourned that he had not been with her in her last moments, and bade the servants bury her with every possible honour and respect.
Now as he neared the home of Untamo's tribe, he prayed to Ukko to endow his sword with magic powers, so that Untamo and all his people might be surely slain. And Ukko did as he had asked, and with the magic sword Kullervo slew, single-handed, all Untamo's people, and burned all their villages to ashes, leaving behind him only dead bodies and smoking ruins.