High in the sky above Parkville, tooth fairies April and Esme Underhill are on their way to collect their very first tooth...April and Esme Underhill have never collected a tooth before. Mum and Dad always do it. But tonight it's their turn. So, equipped with a bag, a coin and a mobile phone, the sisters head for Daniel Dangerfield's house, and a very unusual first tooth visit! This is a charming story of a pair of young tooth-fairy sisters on their first tooth-collection adventure.