Middle-earth
Another example is C. S. Lewis's "Space Trilogy," in which Earth is also called Middle-earth. Lewis's novels are situated at the approximate time of World War II, with the last novel, "That Hideous Strength," taking place in post-war England, and they specifically bring in references to Tolkien's legendarium (at that time largely unpublished) and treats these references as primary fact within Lewis's fiction. Merlin, of King Arthur fame, is treated as a successor to the Atlantis magic found within "Numinor" (Lewis's unintentional misspelling of Númenor), and similarities can also be found in the Quenya name for Númenor, which is "Atalantë," and Lewis specifically references the earth as Middle-earth twice, both in Chapter 13, "They Have Pulled Down Deep Heaven on Their Heads". Lewis's borrowings came directly from Tolkien himself: they were close friends and shared each other's literary creations. Lewis encouraged Tolkien to persevere with his Middle-earth writings.A small selection from the many books about Tolkien and his created world:
J. R. R. Tolkien
One of Tolkien's least-known short works is the children's storybook "Mr. Bliss", published in 1982. It tells the story of Mr. Bliss and his first ride in his new motor-car. Many adventures follow: encounters with bears, angry neighbours, irate shopkeepers, and assorted collisions. The story was inspired by Tolkien's own vehicular mishaps with his first car, purchased in 1932. The bears were based on toy bears owned by Tolkien's sons. Tolkien was both author and illustrator of the book. He submitted it to his publishers as a balm to readers who were hungry for more from him after the success of "The Hobbit". The lavish ink and coloured-pencil illustrations would have made production costs prohibitively expensive. Tolkien agreed to redraw the pictures in a simpler style, but then found he did not have time to do so. The book was published in 1982 as a facsimile of Tolkien's difficult-to-read illustrated manuscript, with a typeset transcription on each facing page.