Dissolving Lock Trap CR 2
Atk +10 ranged touch; Damage 4d4 acid damage; Additional Effects Renders the lock unable to be unlocked by mundane means.
This trap is often used to prevent the rescue of valuable prisoners or other treasures. A dissolving lock trap has a reservoir of acid built into an oversized padlock or door lock (typically, an average lock [DC 25] or good lock [DC 30]). When a Disable Device check to open the lock fails, the reservoir bursts, spraying acid from the keyhole and destroying the lock’s internal unlocking mechanism.
Pathfinder Adventure Path #115: Trail of the Hunted © 2017, Paizo Inc.; Authors: Amber E. Scott, with Crystal Frasier, Luis Loza, Ron Lundeen, Tonya Woldridge, and Linda Zayas-Palmer.