Problem with the 3rd quest

[Joeiiii]

If you want to try 3rd, use the filename ALPHA

I've done this... and cause of this I found a room of no return (in Level 6). I've never thought about it before, but 1-way-shutter could be dangerous and bad. It should not be, that the player must save or retry a game, because of rooms without an entrance. I like Alphadawg's 3rd quest, but the 1-way-shutter problem should be fixed.