This shimmering ribbon, ⅛ inch wide, comes in a 240-foot spool. When you apply it to the perimeter of a door, window, or other aperture and speak the activating magic word, you designate which creatures won’t set it o and determine whether its alarm will be mental (heard only in your mind) or audible. From that moment until you deactivate it, you gain the benefits of the alarm spell. Once deactivated, it becomes inert. This item is popular among minor nobles and merchants. ## Documents ![[How to Defend Your Lair - Keith Ammann.pdf#page=280]]