I remember the fire trap. I managed to enter the temple in turn based mode. Can't remember if we picked the lock or just destroyed the fire head gargoyles, but I got all the way to the stair at the top (right before you would have come across the moon puzzle). And I couldn't find a way to open the moon puzzle door from that side, which would make sense since the story says they were sealing the door to prevent whatever killed the people down below from coming up.
