After doing a search, it looks like several GB'er have played this game. I'm totally stuck on the final the puzzle, where the heroine stops the bad guy from killing the good guy and thwarts his evil plan. I know what I'm supposed to do, but the game won't let me, or else I missed doing something earlier in the game.
I only have one item in my inventory - a sledgehammer and no place to use it. The only 'active" spot is a mechanical box on the left side of the screen with the Seer's Eye in the middle of it, but I can't use the hammer there. I have no clue what to do next. Any hints would be appreciated.