The Vile Peaks are built of debris—the castoffs of material originally lifted up from Pulse by the fal'Cie and used in the construction of Cocoon and later additions of landmass. These towering piles of refuse now serve as lairs for all manner of beasts, including lowerworld mechanical horrors that, intentionally or not, hitched a ride with what became the building blocks of Cocoon. The Sanctum military endeavors to clear out the dangerous inhabitants of the peaks, but some say they leave the job half done to discourage civilians from entering the lowlands.
