Eight-year-old Charlotte is having a 'bad day'. Her ballet lesson was disappointing and earlier she had found her beloved goldfish, Charlie, floating on top of the water in his bowl.
While Charlotte is burying Charlie in the garden she makes a discovery which will lead her, and her best friend, Sarah, into the adventure of a lifetime.
What is a hedgehog stone, and where will it lead Charlotte and her friend, Sarah? What is a 'believer' ... and what do they believe in? Who, or what, is Four-six-seven? Scaly parasol mushrooms and the fearsome woolly warthogs are all part of the journey, but to what end?
Turn the pages and all will be revealed...