The Veil is the space between planes. Its a void, a place where . Most entities can not survive in the Veil without some sort of aid, but a few have managed to pass through un-harmed. There are stories of things that come from that veil; strange but powerful beings. No one is really sure what is there, but what is generally agreed on is that anything that comes from the veil has power and is probably going to bring trouble with it.