"She will clothe herself in a dead girl's body to fight you. Beware the coming of the Remnant." Aliester Crowley
Since before the beginning of time she has traveled alonea remnant of another universethe last of her kind.
Now she is living as Deandra Dukeadopted daughter of demonologist Mark Dukeliving in a borrowed body. Together, they must stop the evil Roger Thornehill in his attempt to claim the blackest of black booksThe Compendium Infernala grimoire that will give him control of the demonic hordes of hell.
But even as Mark struggles to control his personal demons while training Deandra to be not just a weapon but a human being, Thornehill has found his own inhuman assistantSuthuriathe queen of hell.
Evildoers will learn the hard way that when you need to fight fire with fire, Deandra is that fire.