As Hell is composed completely of human bodies, there are other naturally occurring constructs within the landscape of note. As stated previously, the Skin-Land is varied in its tension and consistency; when the skin is soft or friable, it is extremely weak. Often people will not identify this weakness in the Skin-Land, and when they try to cross it, these areas rip open and the individuals sink into the surface. When this happens, they become immersed in blood and liquefied fat. It is extremely difficult, if not impossible, to extract oneself from this semi-gelatinous material.
As these sinking individuals struggle by flailing about violently, their lungs fill with warm fat. Although breathing is not necessary in Hell, this experience of “drowning” still seems to have a physical effect. Ultimately, they become semi-solidified into the Skin-Land. On almost every occasion, one or two of the individual’s extremities will remain above the Skin-Land while the majority of their body is encased below. Because this phenomenon can stretch on for miles, these expanses have been called Arm Forests. This is not the most accurate term because there are also many legs, and even heads exposed above the surface. But for the most part, as people fight to avoid sinking, the arms are the last appendage to be exposed.
From a distance an Arm Forests simply looks like a hundred or so appendages sticking out of the Skin-Land clustered into a dense patch. Often the arms and legs are still twitching as their owners continue to struggle.
It is wise to stay as far away from these areas as possible because the Skin-Land surrounding these Arm Forests is quite thin. This will put you at risk for sinking as well. Occasionally you will hear screams from these areas. You are strongly advised to NOT attempt further inspection. These screams are from individuals fighting against the Skin-Land. Any attempt to try and extract these individuals is extremely dangerous, as the surrounding Skin-Land is so weak.
—From “Hell Geographica”
By Doctorem Delta-Lindicus