The Armory is the second major room encountered in Valka Castle in Endless Ocean: Blue World. It is located off the second hallway that leads to the rest of the castle. It houses several broken barrels, boxes and swords. It is also a good salvage area. If you take your multi sensor out, there will sometimes be a strange occurrence where it will direct you right to the wall. On the other side of the wall, it will occur as well, as if something is inside the wall. It is not proven if this is a glitch, or done on purpose to signal that there is something metal in the wall.