"To you as well, Mister Vimes." She replies pleasantly. "I'm coming to the Curti Center in the next little while to see Tyzias, but I was wondering if I could beg a small favour from you while I'm there; I...ah, I'm going to put in a job application for the Nakagawa police force and I was hoping I might be able to ask you for a letter of recommendation. If that's something you'd be comfortable doing, of course."

It's a thought that's been growing on Corrin's mind ever since he told her there'd be a position in the Ankh-Morpork City Watch for her if she ever wanted. If Sam Vimes thinks she can cut it, there's no real excuse for her not to try.