You write words on parchment, paper, or any other material suitable for writing and cast a powerful illusion on it. Its effect lasts until the spell is terminated.
Illusory Script 5e
Classes: Warlock, Bard, Wizard
Casting Time: 1 minute
Components: S, M
Duration: 10 days
The document is an ordinary document to you and the creature you’re casting the spell on, the contents of which convey in your handwriting whatever meaning you were trying to convey when you wrote the manuscript. To all other readers, the document will look like it was written in an unintelligible unknown or magical script.
In addition, you can make the document present a completely different message, making it appear to be written in a different handwriting or language, but you must know that language.
If the spell is removed, the illusion disappears along with the original manuscript. Creatures with true vision can read the hidden messages within them.