New JRR Tolkien love story released after 100 years

A new Middle-earth love story by 'Lord of the Rings' author JRR Tolkien has been published 100 years after being written. 'Beren and Lúthien' has been referred to as a "personal story" written after Tolkien returned from World War One's Battle of the Somme. It's about a man and an elf ordered to complete a dangerous task before their marriage.