Cryptogram

Conjuration cantrip
Casting Time: 1 action
Range: Unlimited
Components: V, S, M (a small written message)
Duration: Instantaneous
You send a small scroll with a short message to a
creature of your choice. The recipient must be a
creature known to you and also be on the same plane
of existence as you. This scroll will hover in front of
the recipient, drop into their pocket, or appear sitting
on something nearby. The scroll’s message can be up
to 8 characters long (spaces count as characters). You
can send only one scroll to a single target each day.