Kind of hard to clearly describe without pictures :)
The premise is a moving floor powered by water - the floor is the top of a large, rough roller powered by water (it could be magic if desired, but I think it can be done with medieval technology.). The floor is not flat but curved (the larger the roller, the less obvious the curve) Go to Comment
(Psst: A large part of the properties is posted twice! You may really want to edit that, possibly also a few other things.)
A simple, interesting, and useful item I must say. It is potent, but has risks a careless user may easily bring upon himself. I like that it is one of its kind - uniques are all the more sought and valued.
You have given serious thought to the effects and uses of it, and it shows. Cookie for the artistic use - and the plot hooks that came of it. Great work. Go to Comment