Lord of the rings

Set in the fictional world of Middle-earth, the narrative follows a quest to destroy the One Ring to prevent the Dark Lord Sauron from conquering the world. 

Written between 1937 and 1949, the work was originally intended as a single volume but was first published in three parts between 1954 and 1955 due to economic reasons. It is one of the best-selling books of all time, with over 150 million copies sold