Susan Sto Helit (also spelled Sto-Helit), once referred to as Susan Death, is a fictional character in Terry Pratchett's Discworld series of fantasy novels. She is the "granddaughter" of Death, the Disc's Grim Reaper, and, as such, has "inherited" a number of his abilities. She has appeared in three Discworld novels to date: Soul Music, Hogfather, and Thief of Time. She is also referred to (though not by name) at the end of Mort, when her father invites Death to her christening.