After being playing for approximately 3 or 4 hours, the game crashed while my PC (lvl 20 High Elf Paladin with telportitis and tp control) was executing a teleportation in the Caverns of Chaos: I selected the tile to which I wanted to go and when I pressed SPACE to execute the order, the game just closed, no error message. I re-executed the game hoping to be able to load the game at the last stairs I visited (auto save), only to discover that all the progress I made since the last game load, at least 3hs earlier, was lost as I could tell from the "level 17" in the label.

Is there ANY way to restore the last auto save? I did a LOT of things in the session while going from level 17 to level 20 :(