SJ Bennett had a successful career writing award-winning books for teenagers, but after a change in the market and a life-changing diagnosis, she decided to completely change tack and began a brand new crime series, Her Majesty the Queen Investigates, which became an international smash, selling over 100,000 copies. With the latest book in the series, Murder Most Royal, Sophia reveals what inspired her to make Queen Elizabeth II her crime-solving protagonist, and how real life events might affect the series' future.