Stephen King Synopsis
All good things must come to an end, Constant Reader, and not even Stephen King can make a story that goes on forever. The tale of Roland Deschain's relentless quest for the Dark Tower has, the author fears, sorely tried the patience of those who have followed it from its earliest chapters. But attend to it a while longer, if it pleases you, for this volume is the last, and often the last things are best.

Roland's ka-tet remains intact, though scattered over wheres and whens. Susannah-Mia has been carried from the Dixie Pig (in the summer of 1999) to a birthing room -- really a chamber of horrors -- in Thunderclap's Fedic; Jake and Father Callahan, with Oy between them, have entered the restaurant on Lex and Sixty-first with weapons drawn, little knowing how numerous and noxious are their foes. Roland and Eddie are with John Cullum in Maine, in 1977, looking for the site on Turtleback Lane where "walk-ins" have been often seen. They want desperately to get back to the others, to Susannah especially, and yet they have come to realize that the world they need to escape is the only one that matters.

Thus the book opens, like a door to the uttermost reaches of Stephen King's imagination. You've come this far. Come a little farther. Come all the way. The sound you hear may be the slamming of the door behind you. Welcome to The Dark Tower.

SPOILER: sent in by Carrieanne.

This book concludes the Dark Tower series by Stephen King.  It picks up directly where book 6 left off with Susannah/Mia giving birth to Mordred, the were-spider.   He promptly kills Mia while Susannah gets away.   After a while, Mordred will also take the life of Randall Flagg (a familiar character to fans of King)  The ka-tet of Roland, Eddie, Susannah, Jake and Oy are eventually reunited although not for long.  They free the breakers (where we meet up with Ted Brautigan again) at Algul Siento but at the end of the battle Eddie is killed.   Roland and Jake must go to Maine to warn S. King of the car accident and prevent his death.   In the process of saving King, Jake is killed.  Roland returns to Susannah with Oy and they continue on the quest.  Susannah saves Roland from Dandelo (who bears a startling similarity to It).  After killing Dandelo, they meet up with Patrick Danville, who we discover has an amazing ability:  Whatever he draws becomes real.  Oy sacrifices himself in order to enable the band of travelers to kill Mordred.  Susannah decides to leave Roland and has Patrick draw a door to NYC and goes through.  Patrick and Roland head off to the Dark Tower where they find the Crimson King, insane and locked out of the Tower on a balcony.  Patrick draws a picture of the Crimson King and then erases it all except the eyes which he made with blood, hereby destroying the King.  Roland sends patrick back on his way while he goes to the Tower at long last.
King tells the reader that they may stop here with Roland running toward the Tower or they may read on but will not like what comes next.  Of course, we read on . . .
Roland enters the Tower and on each level there is an itme that represents part of his past.  First floor, the wooden clip they used to tie of his unbilical cord, Second floor, a diaper, etc.   On one floor there is a memory of the Horn of Eld:  he regrets losing it and a voice tells him that it would have only takena  moment to pick it up.   When Roland opens the last door, he is sucked back to the Mohaine desert, doomed to repeat his quest for the Dark Tower.   He feels his belt and finds that this time he has the Horn of Eld.   Will this make any difference in his journey this time?   It is left up to the reader to decide that for themselves.  The last line of the story is hauntingly familiar to us Constant Readers:  The man in black fled across the desert and the gunslinger followed.