The story of Gudrun's vengeance has been seen (p. 83) to correspond, as far as the amount of action is concerned, pretty closely with the story of Hengest and Finn. The epic unity is preserved; and, as in the _Finnesburh_ story, there is a distribution of interest between the _wrong_ and the _vengeance_,--(1) the death of Hnæf, the death of Gunnar and Hogni; (2) the vengeance of Hengest, the vengeance of Gudrun, with an interval of dissimulation in each case. The plot of the death of Attila, under all its manifold variations, is never without a certain natural fitness for consistent and well-proportioned narrative. None of the Northern poems take any account of the theory that the murder of Sigfred was avenged by his wife upon her brothers. That theory belongs to the _Nibelungenlied_; in some form or other it was known to Saxo; it is found in the Danish ballad of _Grimild's Revenge_, a translation or adaptation from the German. That other conception of the story may be more full of tragic meaning; the Northern versions, which agree in making Attila the slayer of the Niblung kings, have the advantage of greater concentration. The motive of Attila, which is different in each of the poems on this subject, is in no case equal to the tragic motive of Kriemhild in the _Nibelungen_. On the other hand, the present interest of the story is not distracted by reference to the long previous history of Sigfred; a new start is made when the Niblungs are invited to Attila's Court. The situation is intelligible at once, without any long preliminary explanation. In the _Lay of Attila_ the hoard of the Niblungs comes into the story; its fatal significance is recognised; it is the "metal of discord" that is left in the Rhine for ever. But the situation can be understood without any long preliminary history of the Niblung treasure and its fate. Just as the story of _Waldere_ explains itself at once,--a man defending his bride and his worldly wealth against a number of enemies, in a place where he is able to take them one by one, as they come on,--so the story of _Attila_ can begin without long preliminaries; though the previous history is to be found, in tradition, in common stories, if any one cares to ask for it. The plot is intelligible in a moment: the brothers inveigled away and killed by their sister's husband (for reasons of his own, as to which the versions do not agree); their sister's vengeance by the sacrifice of her own children and the death of her husband.