Packender Abschluss der Trilogie um Meisterspionin Mary Quinn im viktorianischen London. Als Dienstmädchen im Buckingham Palast ermittelt sie in einem Skandal um den Kronprinzen und einen alten Chinesen. Ein weiteres Verbrechen führt sie in die Kanalisation, wo sie James Easton begegnet und in große Gefahr gerät.
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.
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.
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.