Two years after being orphaned in a horrific car crash, twelve year old Sebby remains silent and zombie-like. His aunt and guardian Matilda hopes that a new home in the tranquillity of the Cornish countryside will help restore his health.
Sebby is quickly befriended by the precocious Winny, only child of a local farmer, Greg DeSilva. Not exactly a knight in shining armour, but Greg looks good on horseback; and even better in jodhpurs. Too bad he's already claimed by pretty, confident Mary-Jo.
As Sebby emerges from a self-imposed prison, Matilda also finds her voice; aware that she too has been drifting through life, content with "good enough" when she could be magnificent. From being afraid to say "Boo" to a goose, Matilda finally finds the strength to go after exactly what she wants on her terms.