End! Wonderful fighting dungeon. Mostly easy puzzles, but very, very nice fights. Completely different in its idea from the hardest Grimrock dungeon I have ever played "Daedalus of damned souls" (The author said I have been the only one able to finish it sending him the final code in the ending room...) that has very hard puzzles.
There was however another problem between lvl 33 and 34: when you get down/up between the two levels there is graphic bug that let the party stuck between the two levels.
I had to use teleport to overcome it and go through lvl 34 that was ok!
I would like to say a big "thank you!" to Resu for his work and his support, in particular thank you from my two children (6 and 8 years old) that love Grimrock dungeons, fights and puzzles and appreciated A LOT the rooms full of monsters

They played all the dungeon with me, helping with the puzzles (they are better than me!) and suggesting strategies
Thank you again!