Her Majesty the Queen Investigates

The morning after a dinner party at Windsor Castle, 89-year-old Queen Elizabeth is shocked to discover that one of her guests has been found murdered in his room, with a rope around his neck. When the police begin to suspect her loyal servants, Her Majesty knows they are looking in the wrong place. For the queen has been living an extraordinary double life ever since her coronation. Away from the public eye, she has a brilliant knack for solving crimes.

Queen Elizabeth II is having a royal nightmare. A referendum divides the nation, a tumultuous election grips the United States - and the body of a staff member is found dead beside Buckingham Palace swimming pool. Is it a tragic accident, as the police think? Or is something more sinister going on? As Her Majesty looks for answers, her trusted assistant, Rozie, is on the trail of a treasured painting that once hung outside the queen's bedroom.

The Queen identifies the 70 year-old victim, Edward St Cyr, from his signet ring. But the search for his killer is not so straightforward. Suspects include the Queen's horse groom, a shady land agent, an aristocrat neighbour, as well as the victim's many cousins and relations. The investigation leads the Queen - and her trusted assistant, Rozie - to a local pigeon racing club, back to London, and to the ancient, moated Godwick Hall. But how do the seemingly disparate pieces of the puzzle fit together? And who is the next victim?

1957 - A young woman is found dead in a mews house a mile from Buckingham Palace, wearing only silk underwear and a a diamond tiara. An older man is discovered nearby, garrotted and pierced through the eye with a long, sharp implement. According to the police, a high society card game was going on downstairs that night. One of the players surely committed the murders, but each of them can give the others an alibi.

It's 1961 and the Queen is planning her state visit to Italy aboard Britannia. But before she goes, an unreliable witness claims to have seen a brutal murder from the royal train. Did it really happen, and could the victim be a missing friend of Princess Margaret's new husband, Tony Armstrong Jones?

It's 1966 and Queen Elizabeth II is touring the Caribbean aboard the Royal Yacht Britannia. Her schedule is measured in ten-minute increments for five weeks, and nothing can afford to go wrong. But something does. Early in the trip, the Queen's new diary secretary, Pamela Sinclair, is found dead in her cabin. Rumours abound about how she died, but the truth is, nobody really knows.