"The Fall of the Nibelungs" is Margaret Armour's plain prose translation from the middle high German of the "Nibelungenlied", a poetic saga of uncertain authorship written about the year 1200. The story is believed by many to be based on the destruction of the Burgundians, a Germanic tribe, in 436 by mercenary Huns recruited for the task by the Roman general Flavius Aëtius. The introduction to the 1908 edition summarizes the story, "And so 'the discord of two women,' to quote Carlyle, 'is as a little...