| If I recall correct, then the statues lock into place once you pull the leaver near them. After that has happened you can't turn them anymore and this "puzzle" is thus locked. (Not smart of Bioware, but hey - what can you do).
The way it is supposed to work is that all statues are to be turned towards the door and then locked in place, blowing the door up.
You don't loose anything plot critical other then some (random?) loot and gold, so I'd suggest just moving onwards. |