The battledragons and nightmares of the Covenant army dwell here, living without cages or stables of any sort. Piles of food for either type of creature are piled in the corners and a large spring welling up from underground into a water trough provides them with water. The creatures themselves do whatever they want to do, and when nature calls, they have a large trough filled with dirt which channels downwards to the underground farm to use the waste as fertilizer.