[A grin returned with one of her own as she picks up a notepad off to one side and begins sketching several diagrams. Circles laced with complex and esoteric kanji on the outside. Arranged in a mandala form, around a single character he might recognize...simply the symbol for "Closed."

It doesn't take her long, but she's silent throughout, and passes him the pad after she finishes.]

There you are. Several defensive layers, old spell-words, and the simplest thing. [She taps the central letter.] Intent. Which is how most magic works anyway.