Take a pretty but confused teenager. Add a paranormal twist and some forbidden romance. Throw in a few stunning gowns, sparkly jewels and baddies in black trench coats. Stir the ingredients with a deft hand and sprinkling of melodrama. Chances are high that the final concoction will be a paperback winner. For 'paranormal romances' continue to be favourites with young adult readers worldwide, and the fad that began with the Twilight series a few years ago has shown few signs of subsiding. So blood-sucking vampires, dead-eyedzombies and migraine-inducing werewolves continue to park comfortably on bestseller lists. While writers gleefully make the most of the winning formula. Switched - a fast-paced but simplistic novel that was written in all of a week - falls neatly into this genre. But it's a trendsetter in its own right as well. For Switched has been written by 27-year-old Amanda Hocking, who is today seen as the face of the digital publishing revolution.