Good to know. Thank you very much for your quick responses.
By the way: Square C12 has 4 boarders with -----. Does that mean that it is possible to walk onto the walls from this space?
Crossing those borders takes 5 AP. But you're correct that you should not go in to the wall. I think it would have been even more confusing
if we would have left those horizontal 5 AP markers out.
The idea is that you can crawl through chimney (which is 5 + 5 AP movement), but in many occasions has proven to be useful.