Billy's got a lot on his mind - that he'd rather not think or talk about. So he watches David Attenborough, because Sir David's asked all the questions and got all the answers, and swims in the sea, just letting his mind drift . . . So when new boy and nature fan Patrick Green starts at school with 'fingers like steel, strength of a bear' and a mackerel swims up to Billy's face, blows bubbles into his Vista Clear mask goggles and says: 'Fish Boy', Billy knows he can't keep it secret, because . . . a crazy talking mackerel changes EVERYTHING. Shimmering with almost-magic and adventure, this is an exceptional read.