Slashing Rune
HAZARD 6 +15 (trained)
An invisible rune creates knives of force if someone tries to bypass the lock.
DC 25 Thievery (trained) to silently erase the rune, or Dispel Magic (3rd rank; counteract DC 22) to counteract the rune
Slash (arcane, fire)
A creature attempts a Thievery check to Pick the Lock
Knives of force deal 4d8+18 slashing damage to the triggering creature (DC 25 basic Reflex save). On a failure, the creature also takes a –1 penalty to Dex-based skills for 1 hour.
Pathfinder Adventure Path: HellbreakersORC