Cupped like a bowl beneath the other planes, the Negative Plane is the source of necrotic energy that destroys the living and animates the Undead. A lightless void without end, it is a needy, greedy plane, sucking the life out of anything that is vulnerable. Heat, fire, and life itself are all drawn into the maw of this plane, which always hungers for more.
To an observer, there’s little to see on the Negative Plane. It is a dark, empty place, an eternal pit where a traveler can fall until the plane steals away all light and life. Merely entering the plane is comparable to the life-draining touch of a wraith, so only creatures that have Immunity to Necrotic damage can survive there for long.
In some locations on the Negative Plane, the intensity of the plane is so great that the negative energy folds in on itself, stabilizing into solid chunks of matter that devour light. These chunks, called voidstones, are thought to be the source of Spheres of Annihilation and similar magical effects. Anything that comes into contact with a voidstone is destroyed in seconds.
An adventure on the Negative Plane is a face-to-face confrontation with annihilation, which is unlikely to end well for the adventurers. Even if their magic enables them to survive the environment of the plane, the experience tends to drain all the vitality, energy, and happiness from body and soul. The Negative Plane has all the apathy and despair of Hades and the Shadowfell, combined and concentrated in an infinite expanse of nonbeing and uncreation.