51 b642b64e-7017-49f2-8806-6d54fdbd6905 The Children of Húrin J. R. R. Tolkien calibre (7.19.0) [https://calibre-ebook.com] 0101-01-01T00:00:00+00:00 HarperCollins 9780007322589 5bc3c199-ce61-436e-a174-687a5c349a5d eng