I really like the art and atmosphere in this game. Found the same glitch as sseidel that clicking the frog after you take the key generates a new key. Also found that hitting return to menu and then start returns you to the game's finished state -- witch gone, potion brewed, etc.. I made an escape game a while back and had similar issues with trying to get the variables reset. I ended up having to give up and leave the restart button for a future build.
Anyway, this was a good game and I really enjoyed it :)