Enchantment cantrip (arcane)
Casting Time: 1 action
Range: 15 ft.
Components: S, M (a door)
Duration: instantaneous
You roll up your sleeves and artfully knock the door. The closest one being with a language (over 3 Intelligence) on the other side of the door must take a Wisdom save against a Charisma roll. If it succeeds, nothing happens and they are immune to the spell for the next 24 hours. If it fails, it answers something along the lines of "Uh… Yeah?" – revealing they are there.