Of all Stephen King’s novels, the Dark Tower saga has had the most persistent hold upon the author’s imagination. Begun in 1970, it has remained an active part of his creative life for more than forty-two years. Although originally inspired by Robert Browning’s poem “Childe Roland to the Dark Tower Came,” and Sergio Leone’s “spaghetti” Westerns, the Dark Tower novels have a magic all of their own. At the heart of the Dark Tower novels sits the Dark Tower itself, a magnificent magical/technological structure which is the linchpin of the time/space continuum. From the Tower a traveler could reach any where or when of his choosing. This includes our world, and any of the many parallel earths that Stephen King writes about in his fictions.