Behavior in Life
Skeletons are people whose primary Vice in life was gluttony. The ways and reasons that this manifests varies wildly from person to person; anything from binge eating, to drug addiction, to an especially bad World of Warcraft habit. One does not have to be excessively gluttonous to qualify, just more so than any other Vice.
The Skeletons of Limbo are not your typical fantasy skeletons— all bone, held together by some inexplicable magic. Instead, they look largely like they did in life, save for one important factor; depending upon what their "poison of choice" in life was, some part (or parts) of their body will appear skeletal, stripped of all flesh, while the rest of their body carries on as normal. For gluttonous eaters, it might be their stomach; for someone who binge-watched Netflix every day, it may be their eyes; for a smoker or an alcoholic, it might be their mouth; and for an injectable drug user, it might be their arms.
Limbo's Skeletons sort of get the short end of the stick when it comes to supernatural abilities. They are especially sturdy, and it is nearly impossible to break their bones (a necessity, since many of them are exposed). But other than this, their only real supernatural trait is that their bodies are able to function normally despite large sections having no flesh or organs. For example, if a Skeleton with a skeletal mouth and/or torso were to eat food, they would be able to chew, swallow, and digest that food as normal despite having no lips, tongue, or stomach. Also, skeletons with no mouths are still able to talk normally, albeit with a bit more click-clacking of teeth.
Excerpt from The Book of Limbo
A SKELETON IS ONE OF THE RESTLESS DEAD OF LIMBO WHO HAST TAKEN ON THE FORME OF A CREATURE THAT RESEMBLES THEIR ONCE HUMAN FORME, BUT WHICH HAST BEEN STRIPPED OF SOME OF ITS FLESH, LEAVING ONLY BONE BEHIND. THESE CREATURES, ONCE HUMANS WHO INDULGED IN SINS OF THE FLESH, WHILE IN THE REALME OF THE DEAD HAVE BODIES THAT EXPOSE THEIR VICES UNTO ALL WHO CAN SEE THEM. THOSE WHOM ATE COPIOUSLY OF THE FRUITS OF THE EARTH SHALT HAVE BODIES WITH NO STOMACHS; THOSE WHOM FILLED THEIR BLOOD WITH MEDICAMENTS ONLY FOR THE FLEETING EUPHORIA SHALT HAVE BODIES WITH FLESHLESS ARMS OR NOSES, DEPENDING UPON THE VICE IN LIFE.
THOUGH IN PART THEY RESEMBLE THE WALKING DEAD, THE PARTES OF THEIR BODIES WHICH STILL HAVE FLESH RETAIN THEIR HEALTHY PROPERTIES; THUS EVEN THE SKELETON MUST FEAR THE VAMPYRE. THEY ART SUSCEPTIBLE TO ALL THAT MIGHT HARME EITHER BODY OR SPIRIT.