King of Creation said:
Unfortunately, I've never read any Lovecraft...
Then today is your lucky day.
Check-
http://www.dagonbytes.com/thelibrary/lovecraft/index.html
Try the Call of Cthulu,
The mountains of Madness,
The rats in the walls
and the Dunwich Horror.
Good stuff.
However, I do believe that King himself has said that the Dark Tower series has evolved to include more things than even he knew it would when it started out 30 years ago.
THis is where I don't buy it. about 15 years ago, when I was a college student, I was on the trail of getting a rare edition of a Stephen King Book- Dark Tower 1. This was before it came out in big sales. King had written the book and it had been published, but only released a few copies, and those were a rare find. It was only later that he published the series for mass consumption.
This was also after he had written the Dead Zone, Fire Starter, Cujo, Salem's Lot, Different Seasons, the Stand, Carrie, Nightshift, and a few others. The Old era of King, which I think ends with It, which I thought was one of the best of the bunch.
That said, though, the Dark Tower is really the origination of many of the elements in the other stories. Although the book was published in 1982, King began work on it while he was still in college. People like Randall Flagg, the Crimson King, and other things had their originations here. Then King wrote more novels, creating more worlds and characters. The Dark Tower series is his way, I think, to incorporate all of his worlds, indeed, ALL worlds. What came first doesn't appear to matter. What matters is that the Dark Tower is the essence that binds all worlds together, and while King has created different stories that all appear to have significant characters or events, they all play a role in the history of the Tower.
What I think happened is that King started this as a personal project and worked with it but didn't know where to go with it. Feeling the need to finish it he started working on the other volumes and they kind of came together. But each of the books is quite different and all pale to the first, which is more a collection of stories of a trip than a novel.
But King has worked, or so he has told his Dear Constant Readers, without notes. He sits down and bangs it out, probably with some sense of where the story is going but kind of surprised at where it takes him. To think that King wrote all his stories with ties to the Dark Tower credits him with more of a "masterplan" than I think King ever really brought to his writing projects.
Now if you look at Lovecraft, his notion of "Elder Gods" comes up through his work, but only dominated his thinking during a portion of his time. We know he was working with that kind of a "masterplan" because of his extensive correspondence with other writers of the time who shared an interest in writing about "weird fantasy."
To accept, as you argue, that all of King's books fit into a mythological structure of story telling seems a bit fallacious. It is possible that King plugged in parts of his books into the Dark Tower world during his writing because that was part his intellectual and artistic development. But to say that all the stories were written with the intention of fitting into a structure is a bit disingenous.
It sounds more like fans have created this structure after-the-fact through rather poor process tracing. In otherwords this is a creation of the fans, or perhaps King himself as a means of commercializing (and let's be honest, King is also a crafty businessman). Just because there might be some connections between books doesn't mean there was a masterplan in their creation.
Know what I mean?