Evanesce

You touch the forehead of the target. The target must succeed in a charisma saving throw or be subject to the effects of the spell; if it succeeds, it is immune to this spell for 48 hours if you cast it again. While under the effects of this spell, the target does not need to eat, drink, breath, or rest and it does not age.
The target cannot be seen, heard, felt, smelt, tasted, or otherwise interacted with through non-magical or magical means except through the effects of the spell True Seeing and a perception check against your spell save modifier.
Additionally, any memory of the target is erased from anything that knew its existence and any new memory of it is only retained for 30 seconds unless the rememberer succeeds on a history save equal to your spell save DC that it must repeat every 30 seconds.
While under the effects of this spell, the target cannot interact with the world around it, however spells it casts or other magical effects it can create still take effect. Evanesce can only be dispelled by a casting of Wish, Greater Restoration cast at 9th level.