Illusory Script

Duration: 10 days
You write on a flat surface and imbue it with a
potent illusion. To you and any creatures you
designate, the writing appears normal, written in
your hand. To all others, it appears as if it were
written in a magical script. Alternatively, you can
cause the writing to appear to be an entirely
different message, written in a different hand and
language. Should the spell be dispelled, the
original script and the illusion both disappear.
A creature with truesight