SU 5366 is an interior wall separating rooms 11 and 12, and is associated with the most recent phase of construction, as was the case with SU 5318 and 5362. The wall is split by a threshold. The original depth is uncertain, but the upper layer was likely added during the last excavation of the area 15 years ago. The break that makes up the southern limit was likely created by the same action that ripped through much of the area's southern limit, and may have been done by robbers in search of building materials.