Tatty Apple enters Owen-Owen's life all of a sudden, one cold spring day when the wind is high on the wild mountainside. Owen has never seen such an extraordinary rabbit before – green and brown, like an apple that's waited too long. 'A mischief maker!' says Mrs Owen, when she finds the family sitting room turned upside down. 'Stop thief!' cries Mrs Price as the shiny box of chocolates vanishes from her shop. Only Owen-Owen knows the secret of the green rabbit's extraordinary powers – and when his family and neighbours are in grave danger, he helps Tatty Apple to make the most wonderful magic of all.