Snape sent out a school owl on the treat of slowly plucking each individual feather from it if a single one of the things arrived broken. Enclosed was a handful of very light-purple amethyst forget-me-nots in a small cloth pouch, and a note reading:
"Luna,
Thank you for the gift. It was useful. I won't forget it.
Fine. I'll be available for tutoring in Potions for a couple hours after dinner from now on. Any year. By appointment only. If you know I don't like you, you know who you are, don't bother asking. I'll do Defense Against the Dark Arts as well, for 6th year and under, if necessary.