"It's a difficult skill." There's a hint of a smile even as his gaze remains coolly focused on his work. "The works of master forgers endure for a long time. I've never tried it, but I look forward to watching the process. Step back a moment, please."

Tenn follows the order with a sharp, zig-zagging flick of the wand in the strokes of the sigil and a curt, "Sense magic."

And! Nothing happens. Tenn brings his free hand to his chin. "Hm. The third stroke was too short." This is not like painting kanji. Good to know.