The Silmarillion book read it online here for free, or get to download the free PDF version of the book here. The chief work of J.R.R. Tolkien was published several years after the author’s death in 1977, when the text edited by his son Christopher Tolkien with the collaboration of the Canadian fantasist Guy Gavriel Kay. That is why the book is a detailed chronicle of the Arda universe from its creation to the end of the Third Age.