Anya walked into the common room, biting her lip to hide a smile. She knew that when JD got back later on, he would look for her in her usual spot; by the fire. She was going to put a small note peeking out from under the decorative rug. When he looked for her, he would surely see it.

Note:

Sticking the note under the rug, she waves her wand and puts a protection spell over the note. Nobody but JD could see, or touch it. She smiled, happy with herself, and walked out of the common room.