Two murders in Chelsea plague amateur detective Queen Elizabeth II in the fourth book in the charming series, perfect for fans of Rhys Bowen and Jacqueline Winspear.
1957, England. Young Queen Elizabeth II is finding her way in post-war Europe, trying to repair friendships with foreign governments. Advised by her father's old courtiers, Queen Elizabeth is skeptical that they may not have her best interests at heart. One of them is trying to sabotage her: that much she is sure of.
When two bodies turn up in Chelsea, the Queen finds herself unwillingly used as the alibi for somebody very close to her. Elizabeth knows she can't face these challenges alone, she needs support from someone she can trust. She enlists the help of code breaker, Joan McGraw, to uncover the murderer and put a stop to the person who is trying to sabotage the Queen’s public appearances. 
But as Elizabeth and Joan are uncovering secrets from the past, the clock is ticking and it’s only a matter of time before the killer strikes again.