To Reign in Hell is a 1984 fantasy novel by American writer Steven Brust. It deals with the revolt of angels in Heaven from a point of view that casts Satan as a sympathetic protagonist. The story follows the paths of several characters who are caught up in one manipulative angel's ambition-driven machinations. What follows is a series of miscommunications, missteps and flawed decisions that result in the cataclysmic battle between the forces of Yaweh and the hosts of Satan.