A lock core designed to crumble under the tension of a pick, permanently sealing the door and trapping the tools inside.
(dark and menacing, or lighthearted and clever) Devious Traps for Devious Locking System
A prominent, ornate lock in the center of the door that is completely hollow. The real, much simpler lock is hidden in a nearby architectural detail, like a loose brick or a carved molding. A lock core designed to crumble under the