I bet you have read The Lord of the Rings, If you have not, it is an epic high fantasy novel written by English author and scholar J. R. R. Tolkien.
I watched Lord of the rings movie, is so epic and magical
It was a follow or a sequel to  the Book  to The Hobbit written in 1937
Wow, quite a long time. Was it a true life story?
Of course not, it's an epic high fantasy novel :) 
Was it one of the best selling novel?
, the Dark Lord Sauron, who had in an earlier age created the One Ring to rule the other Rings of Power as the ultimate weapon in his campaign to conquer and rule all of Middle-earth. From quiet beginnings in the Shire, a hobbit land not unlike the English countryside, the story ranges across Middle-earth, following the course of the War of the Ring through the eyes of its characters, most notably the hobbits Frodo Baggins, Sam, Merry and Pippin.
Although generally known to readers as
The Lord of the Rings
The Lord of the Rings is an epic high fantasy novel written by English author and scholar J. R. R. Tolkien. The story began as a sequel to Tolkien's 1937 fantasy novel "The Hobbit", but eventually developed into a much larger work. Written in stages between 1937 and 1949, "The Lord of the Rings" is one of the best-selling novels ever written, with over 150 million copies sold.
The title of the novel refers to the story's main antagonist