Missy This Fic is a new remix challenge for Doctor Who and its various related fandoms, designed to add more Missy to our lives by remixing a story in such a way that it's focused on Missy.
Sign-ups are open now, until 8pm GMT on Tuesday, 10th August. (When is that in my time zone?)
The rest of the schedule:
Deadline: 10th September
Posting period: starting 15th September
Author reveals: 30th September
More info: Full Rules and FAQ @ missy_fest