When Stephen King finished 'The Dark Tower VII: The Dark Tower,' gunslinger Roland Deschain's long quest finally came to an end. It was a bittersweet moment for fans of what King has referred to as his magnum opus. On one hand, it was wonderful to finally reach the end of a voyage King himself was never sure he'd finish in this lifetime (and might not have given his tragic run in with a motor vehicle). On the other, it meant King's time in Mid-World was essentially over. Thinking about never returning to that land and seeing those characters again was a bit tough to swallow. At least news of Javier Bardem playing Roland in Ron Howard's film adaptation lessened the blow a bit.

It was apparently sad for the Master of Horror as well, because last week King announced that he's written a new book in the 'Dark Tower' universe. The latest installment is titled 'The Wind Through the Keyhole,' and should be hitting retailers sometime in 2012.

With Roland's adventure complete, King has decided to explore a period of time earlier in the quest. The new novel follows what happened to the main characters between the time when they left The Emerald City at the end of 'Wizard and Glass' and arrive on the outskirts of Calla Bryn Sturgis at the beginning of 'Wolves of the Calla.'