The Sienna Series is about a funny and headstrong girl who has a sense of adventure and loves solving mysteries. She has an inquisitive mind and a detective instinct, which drives her investigations. It's the Christmas holidays, and 10-year-old Sienna is in the mood for another magical mystery! So, when she sees raindrops turning into little stars, she is sure a new adventure is just around the corner. Her sister Anika is less keen on getting involved - but that won't stop Sienna's quest to find answers. Just what is Mr Panagopolous from The Old Curiosity Shop hiding? Sienna also has to cope with Robbie Webster from school, who is always out to make trouble... but he hasn't bargained for the magic and mischief that seem to follow Sienna around wherever she goes!