Mirror & Door Puzzle

Everyone loves puzzles thrown into their games every now and then.  They provide an opportunity to stretch the player's brain-muscles in a different way, and can really draw the players into the adventure by giving them a compelling reason to explore their surroundings carefully.  This area is a locked and warded room with a puzzle-locked door and a couple of trapped items.    

Comfortable furniture adorns this room - a chair and small table with a lit oil lamp, and a closed wooden chest.  On the walls hang several paintings of priests ministering to the needy, and a small framed mirror hangs on the west wall.  Other than the door you entered by two closed doors lead out - one north and one east. 

Upon the false door to the north and the empty chest are magical petrification traps (Hard DC Thievery or Arcana check to spot, DC hard + 5 Thievery to disarm) for intruders that trigger when opened - blackness pours out and attacks at +(Level -2) vs Fortitude, on a hit the target is slowed (save ends), on first failed save target is immobilized (save ends), on second failed save target is petrified.

This door is arcane locked (DC Level + 26 Thievery or strength to open) with an inscription: "I am deaf, dumb and blind, but I always tell the truth"  Reading the inscription phonetically backwards opens the door.