Plate 529. A12, looking north. The passage runs four paces to a wall. An opening to the right.Plate 530. A12, looking east. The passage runs seven paces to a wall. An opening to the left.Plate 531. A12, looking south. A wall, close enough to touch. An opening to the left.Plate 532. A12, looking west. A wall, close enough to touch. An opening to the right.