The girls solve crimes everywhere, from the classroom to the theatre, becoming firm friends and overcoming the challenges of school life together, despite their different backgrounds.

I think it was [that] I always wanted my books to be a series in the loosest possible way, like how Agatha Christie’s Poirot or Miss Marple, get picked up and put down in a situation, and they solve a murder; it’s not like there’s an overarching story about them. I just have so many memories as a kid, reading series and just not knowing what’s going to happen next and being so immersed in those books. Faced with several irritating grown-ups and fierce competition from a rival agency, they must use all their cunning and courage to find the killer (in time for Christmas Day, of course).When Daisy Wells and Hazel Wong set up their very own deadly secret detective agency at Deepdean School for Girls, they struggle to find any truly exciting mysteries to investigate. Daisy has lost her crown to a fascinating new girl - and many of the Detective Society's old allies are now their sworn enemies. BOOK OF THE MONTH - A heart-warming and hilarious story told in 25 chapters, perfect for the countdown to Christmas. Fest entschlossen, der Sache auf den Grund zu gehen, bevor der Mörder wieder zuschlagen kann (und bevor die Polizei eingeschaltet wird, natürlich), müssen Hazel und Daisy nach Beweisen suchen, Verdächtige ausspionieren und all ihre Intuition einsetzen.

Daisy and Hazel are faced with their first ever locked-room mystery - and with competition from several other sleuths, who are just as determined to crack the case. When the body goes missing the girls have to prove that the murder really happened and solve the crime before the police.A mistress was murdered in a boarding school and no one knows it happened - except for Daisy and Hazel.

Little do they know that in the months that follow, mystery - and murder - will never be far away, and when Hazel discovers the Science Mistress, Miss Bell, lying dead in the Gym, the Detective Society is determined to get to the bottom of the crime. Aimed at a younger generation, this is a modern take on murder mysteries, with great adventure and themes of friendship. Two friends form a detective agency—and must solve their first murder case—in this “sharp-witted debut” (Publishers Weekly, starred review) that is the first adventure in a brand-new middle grade mystery series set at a 1930s boarding school. Daisy Wells and Hazel Wong are taking a holiday on the world-famous Orient Express - and it’s clear that each of their fellow first-class passengers has something to hide. The girls solve crimes everywhere from the classroom to the theatre, becoming firm friends and overcoming the challenges of school life together, despite their different backgrounds.Ma poco dopo, quando lei e l’amica Daisy tornano sul luogo del delitto, il corpo della professoressa è scomparso.