The Veil

The Veil is the void dimension where spirits go after death and before moving on. No one knows what comes after the veil. The Veil is a mirror of our world, however, is constantly plunged in shadow and night. Spirits roam freely throughout.

Different Spirits react differently to the veil. Vampire spirits erode quickly and they slowly become similar to beasts. Mortal spirits generally pass quickly through the veil, but the ones who remain in the veil also erode, becoming phantasms that reflect their human selves. Witch souls erode the most slowly and maintain their living selves the longest however are only able to use spirit magic within the veil, a skill most do not have a talent for or are taught.

History
The Veil is as old as the world, however has been utilized by witches over the centuries. Iltani was one such witch

Veil Magic
Specific magic can be used to manipulate the veil and create bends in its energy, creating void dimensions. Witches who use veil magic are part of a coven known as "The Fae" and are of a secret society. Veil magic is discouraged amongst other witches as the veil is an unpredictable entity that affects the living and the dead.