I definetly think they are in the Ministry of Magic and that a new and untold horror has emerged that forces Lord Voldemort and Harry to combine their magics in order to save themselves and the world. There you go. Now you don't need to read the book. (Yeah right)

Although, If you check out when I joined you will find that I was using the Fenrir name long before Greyback ever was even introduced. I have a weird sense for these sorts of things.