1. Her Royal Spyness (1890)
2. A Royal Pain (2008)
3. Royal Flush (2009)
4. Royal Blood (2010)
5. Naughty In Nice (2011)
7. Heirs and Graces (2013)
8. Queen of Hearts (2014)
9. Malice at the Palace (2015)
10. Crowned and Dangerous (2016)
11. On Her Majesty's Frightfully Secret Service (2017)
12. Four Funerals and Maybe a Wedding (2019)
13. Love and Death Among the Cheetahs (2019)
14. The Last Mrs. Summers (2020)
15. God Rest Ye, Royal Gentlemen (2021)