An illustration of Luthien by Ted Nasmith.
The new book is entitled Beren and Luthien and relates the story of the star-crossed lovers from the First Age of Middle-earth.
The news has caused brows to furrow across fantasy fandom. The story of Beren and Luthien is one of the central legends in Tolkien's The Silmarillion and Tolkien wrote several extended versions of it whilst he was alive, but nothing on the order of the story of Turin Turambar which allowed that story to be published as a short book in 2007, under the title The Children of Hurin.
Indeed, a more likely candidate for the same kind of treatment would be The Fall of Gondolin, the very first full-length narrative of Middle-earth that Tolkien wrote in 1917. Not only is there there original prose story (albeit in a very archaic form), previously published in The Book of Lost Tales, but there is also an updated (if incomplete), post-Lord of the Rings version from Unfinished Tales and the unfinished poem The Lay of the Fall of Gondolin.
Beren and Luthien will open with the Tale of Tinuviel, the very first version of the story written circa 1917-18 and previously published in The Book of Lost Tales. It is expected that the book will also contain The Lay of Leithian, a nearly-finished poem version (previously appearing in The Lays of Beleriand), the summarised version from The Silmarillion and the account that appears in The Lord of the Rings. It will still be probably quite a short book, but will be fleshed out with new illustrations by master Tolkien artist Alan Lee. As usual, Tolkien's son Christopher is on editorial duties.