A third mystery for thirteen-year-old Agatha Oddly – a bold, determined heroine, and the star of this stylish new detective series.

Agatha Oddlow 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 Ci

Agatha’s been a detective for as long as she can remember. But can she crack the case in these three mysteries: The Secret Key, Murder at the Museum and The S

Turn on your torches and join Aveline Jones! Aveline is thrilled when she discovers that the holiday cottage her mum has rented for the summer is beside a stone

A New York Times Book Review Editor’s Choice • Rex Stout meets Agatha Christie with a fresh twist in the new Pentecost and Parker Mystery, a delightfully ha