I've read this book. I REALLY liked it because I love mystery books that don't involve killing. This book is about fashion ( if you like ) and maps to old dresses made by a famous designer from back in the past ( in the book. ) This book is also about friends, bate for criminal, working together, and having each others backs. Lastly, the characters in this book are mice ( mice in story are taking human characteristics ) and they're all girls, and their names are Paulina, Pamla, Violet, Nicky, and Colette. They call themselves The Thea Sisters ( though they are not sisters ) and they named themselves after a teacher called Thea Stilton that they had in mouse academy ( in the book ). Thea Stilton is also who wrote the series.