'All his life Reece has ignored the strange stories told by his grandmother about his namesake, Merlin the magician. And about the castle he's going to inherit one day. He's got no interest in fairy tales, just in facts. Fortunately his sister, Holly, has been paying more attention. Because when the pair of them are caught up in a mysterious explosion and catapulted right out of this world, she begins to understand what it really means to live backwards in time...'
Source: Publisher's blurb.