The Dark Tower 3 - The Waste Lands - Stephen King

Roland has altered ka by saving the life of Jake Chambers, a young boy, in New York.

Now they exist in different worlds, paradoxically sharing memories. Roland, Susannah and Eddie must try to draw Jake into Mid-World then follow the Path of the Beam through an urban waste land to the Dark Tower. Pursued by the Ageless Stranger, Roland and his friends cross a desert of damnation in this macabre new world as revelations begin to unfold about who - and what - is driving him forward.