Novelist Stephen King has finished a new installment in his Dark Tower series. Entitled The Dark Tower: The Wind Through the Keyhole, the book will be published next year.

King (pictured, via) conceived the genre-bending fantasy series when he was 19-years-old. Over the course of his career, King has published seven books and a short story about the fantasy world.

The novelist explained the new book on his blog: “I realized there was at least one hole in the narrative progression: what happened to Roland, Jake, Eddie, Susannah, and Oy between the time they leave the Emerald City (the end of Wizard and Glass) and the time we pick them up again, on the outskirts of Calla Bryn Sturgis (the beginning of Wolves of the Calla)? … It won’t tell you much that’s new about Roland and his friends, but there’s a lot none of us knew about Mid-World, both past and present. The novel is shorter than DT 2-7, but quite a bit longer than the first volume—call this one DT-4.5. It’s not going to change anybody’s life, but God, I had fun.” (Via Matt Staggs)