The official GemStone IV encyclopedia.
Flame suddenly hisses and spits from thin air, which shimmers in the resulting smoke like reflective crystal. Then abruptly, the air roils and begins to take on form. In mere heartbeats, it becomes obvious that the transparent bubble of conflagration is a sentient being. The skayl opens its gaping maw of fire and bellows a malign growl that is more felt than heard. In the next instant, the skayl melts down then reforms a short distance away, leaving a drift of smoke in its wake like a fraying shadow.
Do not cast Implosion (720) around them. They will explode immediately with a major elemental wave.
Skayls cannot be skinned but will yield a gem when searched. However, searching a skayl will result in a minor hand wound that will not give experience if transferred by an empath (the wound will count as self-inflicted).
You break through the husk of the skayl and withdraw a heart of fine smooth glaes!
Suddenly, you realize that the smooth black glaes is steaming hot!
Bright orange lava oozes out of the skayl before it crumbles into a lifeless pile of glaes.