Agatha Oddly. Book 1. The Secret Key

Meet thirteen-year-old Agatha Oddly — a bold, determined heroine, and the star of a stylish new detective series.
Agatha Oddly has been a detective for as long as she can remember — she’s just been waiting for her first big case. And nothing gets bigger than saving the City of London from some strange goings-on.
With a scholarship to the prestigious St. Regis School, a cottage in the middle of Hyde Park, a room full of beloved sleuthing novels, and a secret key that gives her access to a whole