@nimelennar @Daaksyde @Mitchell @William_George @daneel
GM POST
Looking at the blue glow, it appears to be a force field covering the doorway. Just beyond the forcefield, metal grills are visible on both the top and bottom of the doorway; they might be air vents. Within the doorjamb, another blank metal plate is attached to the wall.
There is Arabic script engraved on the metal plate outside the forcefield. It reads “Plague/Demon Ward”.