33MMM TORTURE CHAMBER. Within each of the torture devices present within this chamber (rack, iron maiden, etc.) there is the dead body of a person who looks exactly like one of the party members.
Upon the room being entered, the bodies will animate as zombies and attack.
Zombies (AC 8; MV 6"; HD 2; hp 9 each; #AT 1; D 1-8; SA Always lose initiative; SD Limited spell immunity, limited immunity to all other attacks; XP 83 each)
Each zombie can only be harmed by the person who looks like it. All other attacks have no effect. The zombies appear to wear the same equipment as the adventurers, but it is all valueless copies. For example, gems are glass, metal is poor quality and not useful. Each zombie destroyed will turn to ash. In the ash of the last zombie there is a platinum key worth 450 gold crescents.