Have you ever wondered what treasures might be hidden in your attic? Now, when Jellicle, Tilly Millpepper's black and white cat, finds herself locked in the attic of Dingleby Hall, Tilly is taken by surprise at what she discovers there - apart from Jellicle of course. The surprise is just the beginning of another magical adventure, in which the Wishing Stone grants Tilly her second wish. While Tilly continues to have fun riding her pony Sam, she also manages to collect more 'magical things'. What's more, she encounters a very special new friend, who invites her to a fairy-tale land you and I can only dream about.