The Dark Tower is the seventh novel in Stephen King 's Dark Tower series, published by Grant on September 21, 2004 (King's birthday), and illustrated by Michael Whelan.oland, heartbroken with the loss of the person he considers his true son, buries Jake and returns with Oy to Susannah in Fedic, via the Dixie Pig. They are chased through the depths of Castle Discordia by an otherworldly monster, then depart and travel for weeks across freezing badlands toward the Tower.