I just finished the fourth book of the Dark Tower series, Wizard and Glass, by Stephen King. I’m not so sure about the decision to make it a flash back. I kept thinking that it was going to go back to the regular story. Once I got about three quarters through the book, I realized that the whole book was going to be in Roland’s past. However, now that I’m done with the book, I think it was a necessary diversion. It fills in some of the holes in Roland’s character and sets a purpose behind his quest for The Dark Tower.