What do you mean I can't kill them?

Moving into the next chamber, 7 levers lined the walls, each flanked by a shield with a pair of swords behind it. There was also an empty fountain in the center of the room with 4 pools surrounding it.

Acererak told the party the door could be lifted by use of the levers, or the pools. The party selected the levers.

Once the first lever was pulled, the swords and shields animated and attacked. After hammering on them for a few minutes, the heroes determined the shields and swords could not be destroyed, so the heroes accepted the challenge and began pulling the levers down.

Unfortunately for them, the levers needed to be pushed up. So after several ill spent rounds pushing the levers down, the heroes had to revisit each one and reverse their direction.

Once they were all up, the shields and swords returned to the walls and the door opened.