Twilight Sparkle and friends get a surprise invitation to an illustrious yet mysterious ball being held at Pie Manor, but soon realize that they may have gotten themselves into another sticky situation when guests suddenly start to disappear. Now, locked inside the sprawling mansion with hundreds of other panicky ponies, they'll have to find out who's responsible for the disappearances before it's too late, and they may end up discovering dark secrets about each other along the way...

(Plenty of twists and turns in this fic, as well as surprise ships, and plenty of suspense. Rated Teen just to be safe.

I've already decided who "it" is, so I'll be leaving plenty of clues in each chapter. Feel free to speculate openly in the comments (in fact, I encourage it :) So beware of spoilers). Feel free to PM any questions, concerns, or comments to me and I'll be happy to reply.)