The author of "Morgoth's Ring" drew the original maps for which of his father's books?
Morgoth's Ring: Morgoth's Ring (1993) is the tenth volume of Christopher Tolkien's 12-volume series "The History of Middle-earth" in which he analyses the unpublished manuscripts of his father J. R. R. Tolkien. Christopher Tolkien:  He drew the original maps for his father's "The Lord of the Rings", which he signed C. J. R. T.
"The Lord of the Rings"