"Do-overs" are possible. Elle awakens on a spaceship. Her body is different, she has new magical abilities, and she’s told her civilization's fate is in her hands. A mysterious Darkness has infected the crystalline network connecting the settled works. The unique properties of the crystals allow reality to be 'reset' to past moments in time, granting second chances. However, the Darkness isn't only threatening the reset process—it's consuming entire planets.