I find it odd that people so rarely mention King's largest work, The Dark Tower Series. The writer of this article mentioned "epic stories" but didn't include DT. So many of SK's books are related in some small way to the DT series.

I appreciate that Fairy Tale was mentioned, as I'd not heard of it. The description given sounds similar to SK's The Talisman and The Black House series, written with Peter Straub, so I just bought the book.