Fred and Ellie are twins, though not identical, since that is impossible for a boy and a girl. They like all the same things, and what they like most is video games, which they are brilliant at. They are not so brilliant at everything else: school, bullies, parents who never seem to listen. Then a mysterious stranger hands them a games controller unlike any other, one that does not control a game but real life, real people, the actual world around them. Suddenly the twins have the power to make anything happen. But power has a habit of getting out of hand, and Fred and Ellie are about to learn what it really costs. A thrilling, hilarious and surprisingly touching adventure from the author of The Parent Agency, packed with Jim Field's brilliant illustrations.