the eighth annual Yuletide Guessing Game

As has been my wont, I participated in the Yuletide fanfic exchange this year, and has been my habit, I wrote four fics for it -- my assignment, and three treats. If any of you currently reading your way through the archive would care to guess at my offerings, I will give you the following clues:

• I wrote for one book, one movie, one TV show, and one play.
  
• Only one of those is a fandom I have written in before.
  
• My assignment is in the 4000-5000 word range.
  
• For some inexplicable reason, all three of my treats came in between 1600 and 1700 words.
  

Any guesses?