er…

todash:

The space between worlds. "Going todash" is a way of traveling to different worlds, although anyone in a todash state will be invisible to all in the world except for the vagrant dead, who temporarily exist in the Todash darkness until they find their way home.

… that's pretty much the way Rene described the outworlders whom she saw, like Aries, except that she could see them. How weird. Maybe she qualifies as vagrant dead.