As they ride to the king's hall, Atli and his sons arm themselves for battle, and demand Sigurd's treasure, which belongs by right to Gudrun. Gunnar refuses to surrender it, and the fight begins, after some exchange of taunting words. Gudrun tries at first to reconcile the combatants, but, failing, arms herself and fights on the side of her brothers. The battle rages furiously with great loss on both sides, until nearly all of the Nibelungs are killed, when Gunnar and Hogni are forced to yield to the power of numbers and are captured and bound. Gunnar is asked, if he will purchase his life with the treasure. He replies that he first wishes to see Hogni's bleeding heart. At first the heart of a slave is cut out and brought to him, but Gunnar recognizes it at once as that of a coward. Then they cut out Hogni's heart, who laughs at the pain. This Gunnar sees is the right one, and is jubilant, for now Atli shall never obtain the treasure, as Gunnar alone knows where it is hid. In a rage Atli orders Gunnar to be thrown to the snakes. Though his hands are bound, Gunnar plays so sweetly with his toes on the harp, which Gudrun has sent him, that all the snakes are lulled to sleep, with the exception of an adder, which stings him to the heart, so that he dies. Atli now walks triumphantly over the dead bodies, and remarks to Gudrun that she alone is to blame for what has happened. She refuses his offers of peace and reconciliation, and towards evening kills her two sons "Erp" and "Eitil", and serves them at the banquet, which the king gives for his retainers. When Atli asks for his sons, he is told that he had drunk their blood mixed with wine and had eaten their hearts. That night when Atli is asleep, Gudrun takes Hogni's son "Hniflung", who desires to avenge his father, and together they enter Atli's room and thrust a sword through his breast. Atli awakes from the pain, only to be told by Gudrun that she is his murderess. When he reproaches her with thus killing her husband, she answers that she cared only for Sigurd. Atli now asks for a fitting burial, and on receiving the promise of this, expires. Gudrun carries out her promise, and burns the castle with Atli and all his dead retainers. Other Edda songs relate the further adventures of Gudrun, but they do not concern us here, as the "Nibelungenlied" stops with the death of the Nibelungs.