Collapsing Wall Trap CR 6
Type mechanical; Perception DC 14; Disable Device DC 16
Trigger spell trigger (alarm); Reset none
Effect Atk +20 melee (8d6, stone blocks); multiple targets (all targets within 10 ft.)
The treasure in this room is actually a permanent image (DC 21 Will save to disbelieve if interacted with) and Tirana’s first line of defense against thieves. If any creature interacts with the illusory hoard, the wall collapses in a shower of rock, dust, and mortar, smashing anyone within 10 feet of it.