: Stories often integrate real-world investigative tools, such as mobile apps, the internet, and hidden cameras.

: An adventure in Italy involving a kidnapping and a legendary ring.

The series, authored by Thomas Lockhaven , is a middle-grade mystery collection featuring twelve-year-old best friends Ava Clarke and Carol Miller . These "whip-smart" protagonists solve global and local mysteries using a combination of forensic skills, humor, and teamwork. Core Characters

: A Christmas-themed investigation into a supposedly haunted house and a string of local robberies.

: Ava's best friend. Together, they utilize forensic techniques such as dusting for fingerprints, analyzing hair samples, and casting footprints. Series Reading Order