The Secret Key (Agatha Oddly #1)
Meet thirteen-year-old Agatha Oddly - a bold, determined heroine, and the star of a stylish new detective series. Agatha attends prestigious St Regis Grammar School, has an eye for all things vintage, lives in Hyde Park, London, and has wanted to be a detective for as long as she can remember. She's just waiting for her first Big Case... And nothing gets bigger than saving the city of London from a deadly red slime. Agatha teams up with Liam - her best friend and partner in crime - determined to solve the mystery. For Agatha, no case is too odd...