The fifth instalment of the epic family saga of the world's most famous dynasty features correspondence from the Queen's personal family archive held at Windsor, and reveals how a naïve 19-year-old was transformed into a global celebrity. Diana's huge personal popularity and tragic death posed the greatest challenge to the Windsors since the abdication of Edward VIII. Like Edward VIII, Diana was a stellar personality who found attention overwhelming but craved the limelight. She also developed her own vision of monarchy, talking openly about her life and problems; behaviour that was taboo under the Windsors' code of zipped tight discretion. On paper Diana was perfect; in reality she turns out to be deeply troubled. As her marriage flounders she turns her vulnerability to her advantage by reaching out to other damaged people and wins huge affection as result.The royal family struggles with challenges caused by Diana's extreme popularity, her rift with Prince Charles, and her tragic death.