Keystone Trap
Level 7Hazard (Complex)HazardUniqueMediumLegacy
AC
25
HP
50
Speed
0 ft.
Perception
+0
Fort
+18
Ref
+12
Will
+0
Stealth
+17
Recall Knowledge DC 33 (arcana)
Disable DC 24 thievery (trained) to find and press hidden knobs in a specific order (three successes are required to disable the trap, which also opens it); DC 24 crafting (expert) to sabotage the vault's mechanisms, reducing its actions by 1 (when the trap's actions are reduced to 0, it is disabled)
A 5-foot-square metal vault covered with knobs lies concealed within a stone block. A lever on the stone block slides the vault into view. When the vault is exposed-whether it's slid out or whether the stone is smashed open-the trap activates.