October's Feature Room (planning stage pt.2)

OK then, as I mentioned in a previous post, if there are no submissions from the $5 patrons by the 15th of the month, I will open up the 'feature room' suggestions to all patrons :)

However, Doug Z (one of the splendid fellows that supports at the $5 level) has suggested something 'arcane' in nature - but has left the details purposely vague.

So, if anyone has any ideas for something that would fit the 'arcane' theme (that would also fit within the confines of the small tile shown above*) then feel free to post them in the comments below!

*note that the room(s) can be any shape, and need not contain all 4 exits.