I spent a merry hour or so wandering around and trying to “solve” the moving rooms slide puzzle (and it turns out if you do, you don’t get anything), and trying to reach new areas. And failed. Most parts of the map I can’t get to are blocked off either by jumps too high to make, or what look like corkscrew wall things that I can’t move.
However, there is one room that is most odd. In the bottom right of the map as it stands, I go through one of those short corridor bits, and enter a room. As soon as I enter, a cannon fires a cannonball, which hits a clock, a column collapses slightly, and everything (except me) freezes and goes kind of inverted black-and-white. It is VERY odd indeed, and I’m stumped.