Three great scale golems stand guard around a large central pump that connects metaline source on floor 3 with the Ul-kari necro-engine in 5.9. Intruders are identified and attacked if deemed a threat. A pile of Anuran corpses are compacted into the corner of the room. The pipe running from the middle of the ceiling to the north wall pulses with an unearthly silver light. The pipe fitting in the north wall conceals a set of latches and handles that remove a maintenance plate and allow access to 5.9. The chamber smells light salt water and ozone and there is a constant ultra low frequency hum throughout.