Grace and the Revenge of the Drawl - The Grace Trilogy, #2

Part Two of the Grace Trilogy:Grace is summoned to return to the cat world by an anonymous letter. Upon her return she discovers a world in tatters. The Drawl have invaded and enslaved her friends. This time Grace can't stay too long in the cat world and she must return to her own dimension before morning. Each tortured second at school she is thinking of her friends suffering. That is until she meets Shaun....
Now Grace must find Boot and a way to release the Cats in bondage and banish the dark invaders back to their own dimension. But someone else is also stalking Grace, an old enemy who is even more dangerous than the Drawl. Can Grace survive long enough to help her friends?