You touch the corpse of a humanoid, and visions of its descendants come to you, as ephemeral spirits scour the world. As part of casting this spell, you learn how many living relatives the humanoid left behind, and if they have any living descendants.   In addition, you can select one of the descendants whose existence you can feel through the spell. By destroying the corpse to amplify the power of the magic, you can attempt to determine their location. The target must make a Wisdom saving throw. On a failed save, you learn their location as long as it is on the plane you are on.