The central journey of the Dark Tower series: Roland Deschain's relentless pursuit of the Dark Tower, which has consumed his life across countless years. Beginning as a quest to save the Tower from the Crimson King's forces who seek to topple it and end all of existence, it is also a deeply personal obsession that has cost Roland everything he has ever loved. Whether the quest is one of salvation or damnation - for Roland and for the worlds that depend on the Tower's survival - is the fundamental question of the series.