"A tale of that Duke of Bordeaux who came to sorrow at the hands of Charlemagne and yet won the favor of Oberon, the elf king, to his lasting fame and great glory." This is a later addition to the Charlemagne cycle last translated into English by Sir John Bourchier (Lord Berners) as "Boke of Duke Huon de Burdeux" in 1534 and adapted by Andre Norton in 1951.
In addition to its stand-alone volume, this title was published in the follow book. It can be rated independently of any volume containing it.