There are well hidden vases to shoot, one room is in the central area, the other is one that can be seen from two different labriniths. If you can see into a room, shoot into it. I had to get exactly the right distance from the window, and could not see the vase, just look for the somke. It can be done, and this is a fun level.
[Darkstoner 20-06-2014 20:36:57]:
Well, so I entered the Labyrinth of Solitude, unsealed all 4 sectors, but was only able to access the Twilight and Greenheart chambers (blue and green Master's rooms). I found a fair collection of items (some junk, 2 master's rings, a letter written in Common detailing the Torzian high council instructing the Masters to skip Uma along with them) - but nothing else. I was able to solve the puzzles that enabled access to all 4 sectors, but didn't find any vases to shoot that might let me gain access to the other masters' rooms. Any help will be appreciated.