The doors on the bridge are magically trapped to discourage visitors from outside. Touching either door triggers a gust of wind spell, which pushes intruders who fail a DC 14 Strength saving throw off the bridge. The fall to earth results in 20d6 falling damage; the use of any flying or teleportation magic avoids the damage. Either door can be opened safely by saying “Open” in Draconic, Infernal, or the Void Speech; the word echoes loudly enough to alert inhabitants beyond the door that they have a visitor.