'This particular phase in my life is the most dangerous. My husband is planning'an accident' in my car, brake failure and serious head injury in order to makethe path clear for him to marry.' - Letter written by Princess Diana, late 1996 

It is a moment that remains frozen in history. When the Mercedes carrying Diana,Princess of Wales, spun fatally out of control in the Pont de l'Alma tunnel in Paris inAugust 1997, the world was shocked by what appeared to be a terrible accident. 

But two decades later, the circumstances surrounding what really happened thatnight - and, crucially, why it happened - remain mired in suspicion, controversy, andmisinformation. Until now. Dylan Howard has re-examined all of the evidencesurrounding Diana's death - official documents, eyewitness testimony and Diana's ownprivate journals - as well as amassing dozens of new interviews with investigators,witnesses, and those closest to the princess to ask one very simple question: Was thedeath of Princess Diana a tragedy...or treason? 

Diana: Case Solved has uncovered in unprecedented detail just how much of a threatDiana became to the establishment. In these pages you will learn of the covert diariesand recordings she made, logging the Windsors' most intimate secrets and hiddenscandals as a desperate kind of insurance policy. You will learn how the royals wereFront Page Detective Seriesnot the only powerful enemies she made, as her ground-breaking campaigns againstAIDS and landmines drew admiration from the public, but also enmity from powerfulestablishment figures including international arms dealers, the British and Americangovernments, and the MI6 and the CIA. 

And, in a dramatic return to the Parisian streets where she met her fate, the twoquestions that have plagued investigators for over twenty years will finally beanswered: Why was Diana being driven in a car previously written off as a deathtrap? And who was really behind the wheel of the mysterious white Fiat at the sceneof the crash?