Just Finished Rereading Song of Susannah by Stephen King

Song of Susannah is the sixth of seven books in Stephen King's Dark Tower fantasy/science fiction series, published in 2004...just a year after the sixth book, Wolves of the Calla and in the same year as the very lengthy finale, The Dark Tower.  The series' premise continues, with the "ka-tet" of Roland Deschain, Eddie Dean, Susannah Dean, Jake Chambers and Oy the billy-bumbler as they seek the Dark Tower, which binds all of reality together and is threatened by the evil, powerful, and most probably insane Crimson King.  Here Susannah is going through her pregnancy induced when having sex with a demon while trying to save Jake from captivity in an earlier book. An alternate personality in her own body, Mia, takes control of it and steers the "two" of them to where the bad guys are preparing for what is most likely a demon child's birth.  Meanwhile the rest of the heroes, along with Father Callahan from the previous book and King's early novel Salem's Lot, seek to buy a crucial empty lot in east Manhattan where a single red rose seems to hold the key to the Tower.  To this end they end up in Maine, where they discover King...which starts a curious mirror effect in the series where readers are reacquainted with his earlier works as well as his personal life history and habits.  Even reading through all this a second time around, I found the book to be a bit confusing to say the least...but I think its main function was to serve as a link to the series' final volume.  And with this I think it succeeded, and now it's onward to that amazing ride in King's massive conclusion to the Dark Tower series...