Her Royal Spyness (Her Royal Spyness Mysteries, #1)

Georgie, aka Lady Victoria Georgiana Charlotte Eugenie, cousin of King George V of England, is penniless and trying to survive on her own as an ordinary person in London in 1932.

So far she has managed to light a fire and boil an egg... She's gate-crashed a wedding... She's making money by secretly cleaning houses... And she's been asked to spy for Her Majesty the Queen.

Everything seems to be going swimmingly until she finds a body in her bathtub... and someone is definitely trying to kill her.