The Adventures of Tom Bombadil actual translation from the "Red Book of Westmarch", and contains some background information on the world of Middle-earth that is not found elsewhere: e.g. the name of the tower at Dol Amroth and the names of the Seven Rivers of Gondor. There is also some fictional background information of those poems, linking them to Hobbit folklore and literature and to their actual writers (some of them are ascribed to Samwise Gamgee). The book uses the letter "K" instead of "C" for the /k/ sound in Sindarin (one of the languages invented by Tolkien), a spelling variant Tolkien used many times
Angmar territory under Frumgar. At the end of the Third Age, Frodo Baggins, Meriadoc Brandybuck, Samwise Gamgee, and Peregrin Took were captured at the Barrow-downs on their journey to Rivendell. When rescued by Tom Bombadil, Merry thought he had been stabbed by one of the men of Carn Dûm, but then realized this was a dream. In "", the remains of Angmar consist of a mountainous, barren wasteland populated by hillmen and a large army of the Witch-king amassed to conquer Eriador. At the northern edge of Angmar are the ruins of Carn Dûm, which have been partially rebuilt and populated