Instant Door

This item resembles an ornate key of bright copper, often inset with semi-precious stones or detailed with engraved filigree scrollwork and ornaments. While holding the key, you can make a turning motion to create a door in any wall within 5 feet of you. This door goes through a wall up to 5 feet thick, creating an exit that remains until you remove it. Turning the key in the opposite direction turns any normal, non-magical door into a section of stone or other material matching the wall to either side (wood, wattle, plaster, and so on).