When Katie gets the first note in her rucksack she thinks someone’s playing a joke on her. But after she receives two more notes from a mystery schoolmate – one of them asking her to dance at the Valentine’s Ball – she knows it’s serious. Katie can’t imagine any of the boys she knows sending her love notes, and frankly, she’d rather not find out – Bel and Becky’s frenzied excitement has made her totally bored of hearing about boys and Valentine’s Day. Katie wants her admirer to stay secret – preferably for ever!