Some of the Sagas are a reduction of heroic fable to the temper and conditions of modern prose. _Laxdæla_ is an heroic epic, rewritten as a prose history under the conditions of actual life, and without the help of any supernatural "machinery." It is a modern prose version of the Niblung tragedy, with the personages chosen from the life of Iceland in the heroic age, and from the Icelandic family traditions. It is not the only work that has reduced the Niblung story to terms of matter of fact. The story of Sigurd and Brynhild has been presented as a drama by Ibsen in his _Warriors in Helgeland_, with the names changed, with new circumstances, and with nothing remaining of the mythical and legendary lights that play about the fortunes of Sigurd in the Northern poems. The play relies on the characters, without the mysteries of Odin and the Valkyria. An experiment of the same sort had been made long before. In _Laxdæla_, Kjartan stands for Sigurd: Gudrun daughter of Osvifr, wife of Bolli, is in the place of Brynhild wife of Gunnar, driving her husband to avenge her on her old lover. That the authors of the Sagas were conscious at least in some cases of their relation to the poems is proved by affinities in the details of their language. In _Gísla Saga_, Thordis, sister of Gisli, has to endure the same sorrow as the wife of Sigurd in the poems; her husband, like Sigurd, is killed by her brother. One of the verses put in the mouth of Gisli in the story contrasts her with Gudrun, daughter of Giuki, who killed her husband (Attila) to avenge her brothers; whereas Thordis was waking up the pursuers of her brother Gisli to avenge her husband. With this verse in his head, it is impossible that the writer of the Saga can have overlooked the resemblance which is no less striking than the contrast between the two cases.