(W.I.P.)Westeros

Choose a door, window, or area within range that is no larger than a 20-foot cube. You create a simple mechanical or tripwire-based trap that alerts you when a creature touches or enters the area. When triggered, the trap produces the sound of a hand bell for 2 seconds within 50 feet. This trap can be detected with a successful DC 15 Perception check and disarmed with a DC 10 Dexterity (Thieves' Tools) check.