For the Mabar endless night event around Halloween (the one where we all work together to defeat the spectral dragon) why not add a "haunted house" that players can explore. My idea is to make it dark like the Den of Obscurity from the Rainbow in the Dark Quest, that way you could make all sorts of things jump out and scare players. Each player would have a choice to carry their own torch (thus limiting you to a single one handed weapon and no shield) or have to stay close to the torch bearer so you can see. If possible, make the room layouts random so nobody would know what to expect each time they run it. The Den of Obscurity has such a cool lighting mechanic... why not use it for something else.
Thoughts?
-Mark