Undeath

The undead are a constant problem in modern society. Any person who has died has a chance of rising again. This phenomena started after the apocalypse and the creation of the Necropolis. Scholars believe the barrier between life and death has been weakened, which allows souls to try to return to their bodies and walk the world once again. Be careful, as undead retain many of their abilities that they had in life, though not their mind. Undead can take the form of zombies, skeletons, ghosts, ghouls, wights, shadows, vampires, and other creatures.
When an undead is created they are usually mindless, without any ability to reason or communicate. Undead will wonder around aimlessly until they encounter a living creature, where they become violent and attack. More powerful creatures, when raised, may retain some or all of their intelligence when they return.
The Necromancers of the Pale Lady can do a ritual after someone has died to prevent the body from becoming an undead, a process important to elves which have reached the end of their life. Bodies that are treated with respect are less likely to rise again allowing non-religious burial rites to still be effective across all cultures. Cremation is uncommon as the only thing worse than an undead with a body is an undead without a body.

Manifestation

Sometimes there's cool spooky black or purplish smoke and light.

Localization

Global. There's no locations that seem to have more frequent rising of the undead than others.

Type

Metaphysical, Supernatural