Roland and his band have narrowly escaped the city of Lud and boarded Blaine, a train that will take them to, of all places, Kansas, where the ghost city of Topeka has been depopulated by a superflu and where, alongside Interstate 70, an emerald palace rises enchantingly. Before Roland and the companions of his ka-tet continue along the Path of the Bean, Roland must tell his companions the tale that defines him both as a man and hero, a long-ago romance...