The Queen of the Crown is the head of a vast and crumbling Crown Empire. She uses Slaver Lords (A construct power with the life force of other beings contained in a psychocrystal) to maintain her empire, as she has a psychic link with them, and therefore can see and hear anything they do.
However, she has not yet found a race powerful enough to power a slaver lord for any great length of time. Humans suit her needs perfectly, but so far she has managed to acquire only one human psychocrystal.