Lady Letitia Deverill arrived in London to begin her new duties as maid of honor to Queen Victoria. Letitia was the only Tory among the Queen's ladies situated there only to "balance the mix". Every other lady was a Whig. Lady Catherine was the only friendly one toward Letty. Viscount Raventhorpe was the most irritating and interfering man to her.
Letty also inherited a house in Mayfoir, inhabited by two elderly women. Due to terms of the inheritance, the two women were allowed to live in the house for the rest of their lives. Letty had no problem with this since she found the women to be very sweet, even though a bit eccentric. Problems began when Letty's pet monkey uncovered the secret of the house. Letty and Raventhorpe are then constantly trying to avoid scandal because of the house's secret.
Letty soon discovers a plot to assassinate the Queen. Now Letty and Raventhorpe must act quicly to thwart it.