The Quasi-Elemental Plane of Vacuum
The Quasi-Elemental Plane of Vacuum is a vast, empty space created by the junction of the Elemental Plane of Air and the Negative Energy Plane. In this case, it is nearly completely devoid of any matter at all, including air. It is a vast, black expanse with no light, where very rare and very strange creatures prowl. All the hazards of venturing beyond the atmosphere of a Material Plane planet are present. In addition, the plane’s negative energy effects slowly drain the heat from one’s body. It is no wonder that some call it The Empty Reach, or sometimes simply The End.
Unlike the other quasiplanes and paraplanes, there are no differing border regions within the Quasiplane of Vacuum. These other planes may have such border regions where Vacuum bleeds into them – or perhaps, bleeds out of them – but conditions within the Vacuum plane itself are constant.
The nature of vacuum has a terrible effect on inanimate things as well, which becomes most apparent in the case of articulated mechanisms. Vacuum welding affects anything from joints in a suit of full plate to the mechanical limbs of a clockwork horror.