Before the Party

This Time Round was closed for a party, or so the sign told Grace as she ventured inside.
"Hello, Dr. Holloway! I'm Harry Sullivan. Thanks for coming early."
The UNIT man led her around the room. "Here are Katarina and Leela." The two women nodded politely.
"That's Dodo. Don't mention David Bishop to her. There's Sara Kingdom, young Victoria Waterfield, and the robot Kamelion. The kid and penguin are Grant Markham and Frobisher. They're from books, I think."
"Why are we here?"
Harry explained about drabbles and the anniversary. "But I've never been in one of his drabbles!" Grace exclaimed.