Arcane Transcription

Upon casting, any magically hidden or encrypted text or message within sight becomes visible and clear to you. This does not infer to you the meaning of the message, if any, but allows you to read, hear or see the message as original.

Inverse. You can inverse cast this spell. Doing so changes the spell school to illusion. If you do, a single message or text you choose either becomes magically invisible, or encrypted. The encrypted text appears to the naked eye as a generic text, or a specific text of your choosing, but the original message is hidden.