I just looked in mine to see what kind of inventory I used to verify its completeness when I first got it (usually, if a game's rules don't include an inventory, I print something from the web and check everything off and keep it with the game), and there's nothing there. I'm guessing I couldn't find anything, either. I must have been convinced it was complete, though. Are there exactly enough cards to put one monster and treasure in each room and three monsters in each chamber?
IIRC that's the edition that recommends you set the whole game up like that at the beginning of each game (ha - who does that?). That might be how I verified mine.