Finished your module and I keep my opinion, this is the best of your three modules by far.
Interesting puzzles, but some I've had to skip with console, and other I leeft unsolved, making a good idea to start once again.
Found 66 secrets and 4 treasures.
Really loved the 3rd floor puzzle. It's similar to the Einsten test for IQ, I was just thinking about including it in a mod if I had the skill/time to create a mod. And btw, I didn't solved it...yet.
Other than the puzzles unsolved there is a thing that made me very curious:
how many prisoners you can get? cause I found three, none of them being a mage and some scrolls are not useful, like those based in air or ice magic
Anyway, thanks for this great game!