As cute and a little ridiculous as she is, Mary's idea is absolutely perfect. Keeping records. Without mentioning it, Cao Pi takes a moment while others are talking and slips over to...well, not write himself, no one would be able to read it, but rather to whisper to Mary so she can write it down.

"Emergency gathering places. Training. A defense force." And then, with a smile, idea #4. "Building and restoration."