Mycoplasma pneumoniae are Soma’s silent hunters. They lurk undetected in the world’s forests, phantoms ever haunting Soma’s peaceful communities. Their elusory presence even once led the Apothecaries’ strategists to mistake them for another class of foes that haunt the land—the dreaded viruses—a suspicion supported by the irreparable damage they can cause to some of Soma’s most vital cities. Their ghost-like nature affords them the ability to slip undetected through the city walls that often block their less sly brethren. But M. pneumoniae‘s greatest defense is their peculiar skin, which lacks the telltale signals that many Apothecaries use to recognize the offenders and bring them to their knees. Thanks to the skin’s unique composition, the Penicillins and other Beta-Lactam warriors are completely ineffective against the Lords’ fearsome attacks.
M. pneumoniae tend to invade the Spira Forest from the northern shores, and can establish themselves there, or enter the Life Blood Rivers and travel throughout the land. Once they replicate themselves into large enough armies, they can inhibit the Forest’s ability to filter the air, causing serious damage to the Brain and the twin Heart Cities, and even kill the flora and fauna of the regions they infect.
And though there are a handful of Apothecaries that can conquer the beasts, M. pneumoniae do not go down without a fight. More than any other Lord, they need the land for their own survival. To achieve their diaphanous guise, they’ve given up some of the assumed luxuries of life, such as a completely autonomous metabolism. M. pneuomniae have lost the ability to sustain themselves without a host, and thus will never stop attacking the lush world of Soma.