Chamber of Truth

The Chamber of Truth was the place where Reidak and Vezok questioned the Matoran.

Description
The Chamber of Truth was a dark room in the Piraka Stronghold with one door on it. There was a slot on the door for the Piraka to look in and question the prisoners. If they would tell a lie, the floor would shift a little so it would become at an angle eventually. Beneath the floor was a pool of lava, and if the floor shifted to a great enough angle, the prisoner would fall in.

Voya Nui Online Game
On VNOG the Chamber of Truth was on a high peak which was impossible to climb, not in the stronghold. Also, the floor didn't shift; Vezok simply locked the interrogated up in one of three prison cells.