Book 1

A Spy in the House

by Lee Y.S.

Published 9 March 2010
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...Read more

Book 1

The Agency 1: A Spy in the House

by Lee Y.S.

Published 26 April 2016
Steeped in Victorian atmosphere and intrigue, this diverting mystery trails a feisty heroine as she takes on a precarious secret assignment.

Rescued from the gallows in 1850s London, orphan (and thief) Mary Quinn found herself at Miss Scrimshaw’s Academy for Girls, the cover for an all-female investigative unit...Read more

Book 2

Mary’s second adventure as an undercover agent forces her to relive some harrowing childhood experiences as she seeks the identity of a murderer.

Mary Quinn’s new assignment sends her into the building site of the clock tower for the Houses of Parliament dressed as an impoverished young boy,...Read more

Book 3

The Traitor in the Tunnel

by Lee Y.S.

Published 26 April 2016
Get steeped in suspense, romance, and high Victorian intrigue as Mary goes undercover at Buckingham Palace — and learns a startling secret at the Tower of London.

Quick-witted Mary Quinn is undercover at Buckingham Palace, hunting a petty thief, when the Prince of Wales witnesses a murder. Even...Read more

Book 4

Rivals in the City

by Lee Y.S.

Published 26 April 2016
In her fourth adventure, available in paperback for the first time, Mary Quinn no longer has the Agency to support her — just James Easton.

Though Mary has officially left the Agency, her former superiors have asked her to take on a dangerous case: convicted fraudster Henry Thorold...Read more