To Reign in Hell

Heaven is threatened by the reemergence of a cataclysmic event, a wave of energy that can destroy life and result in the loss of many angels. In preparation for this Fourth Wave, the angel Yaweh consults the angel Satan. A plan to build Earth, a new and larger Heaven that would be equipped to withstand the disaster is constructed. Satan questions the plan because doing so will sacrifice the lives of other angels, much like the Fourth Wave itself threatens to do. Charged with convincing their fellow angels to lay down their lives, Satan has reservations about their right to ask for such a sacrifice. This doubt, and the questioning of ethics, opens the door for a devious figure to manipulate Satan, developing a heavenly war.

Originally published in 1984, Steven Brust's To Reign in Hell is a retelling of Satan's revolt against Heaven with much more sympathy for Lucifer and his allies.