Osven says, "This device will not only kick her squarely in the chest with enough force and fury to bind her, harm her, lobotomize her, but also slam the door shut. The door may still have a small opening, or be held open a crack, but it's not going to be a wide open access portal for other forces."
Composed of nested rings, the device appears to be designed with unparalleled craftsmanship. The sturdy outer ring is spiraled brass and steel, with eight facets smoothly alloyed into the overall structure, alternating between dull mottled cambrinth and red-gold orichalcum. The inner ring is a spiral of niello and lodestone, and bears several spokes supporting a central sphere of cambrinth. Capable of spinning freely with the barest whisper of friction, the inner ring bears a minute inscription of an "O".