Deze serie dompelt lezers onder in de clandestiene wereld van een geheime organisatie die opereert onder het mom van een meisjesschool uit het Victoriaanse tijdperk. Het volgt de spannende avonturen van zijn onverschrokken jonge agenten terwijl ze complexe mysteries en gevaarlijke missies aanpakken. De verhalen combineren historische sfeer met een spannend plot en geven vrouwelijke protagonisten macht in rollen van spionage en opsporing. Verwacht een meeslepende reis vol intelligentie, moed en onverwachte wendingen.
Rescued from the gallows in 1850s London, young orphan and thief Mary Quinn is offered a place at Miss Scrimshaw's Academy for Girls where she is trained to be part of an all-female investigative unit called The Agency and, at age seventeen, she infiltrates a rich merchant's home in hopes of tracing his missing cargo ships.
A follow-up to A Spy in the House finds mid-19th-century orphan Mary Quinn tackling a latest case in which her efforts to discover a murderer's identity force her to relive harrowing childhood experiences.
When Mary Quinn is ordered to work undercover after a petty thief steals from Buckingham Palace, she receives attention from a prince, wonders at a murder suspect's shared name with her father, and struggles with her feelings for James Easton.
In a tale steeped in action, romance, and the gaslit intrigue of Victorian London, Mary Quinn’s detective skills are pitted against a cunning and desperate opponent. Mary Quinn has a lot on her mind. James Easton, her longtime love interest, wants to marry her; but despite her feelings, independent-minded Mary hesitates. Meanwhile, the Agency has asked Mary to take on a dangerous case: convicted fraudster Henry Thorold is dying in prison, and Mary must watch for the return of his estranged wife, an accomplished criminal herself who has a potentially deadly grudge against James. Finally, a Chinese prizefighter has arrived in town, and Mary can’t shake a feeling that he is somehow familiar. With the stakes higher than ever, can Mary balance family secrets, conflicting loyalties, and professional expertise to bring a criminal to justice and find her own happiness?