A remarkable biography of Queen Elizabeth II, Elizabeth: Behind Palace Doors, contains secrets of the royal family never previously published in this country. The lives of the Queen, Prince Philip and their children are examined and exposed in detail to reveal the Windsor family's disturbing history of adultery, jealousy and mental cruelty.

Award-winning journalist Nicholas Davies examines the mood, the ambitions and the forebodings of the Queen at the start of the new millennium. He gives us, too, an insight into the harsh reality of the relationship between the Queen and her husband.

Elizabeth: Behind Closed Doors also investigates the early years of Charles, Anne, Andrew and Edward, covering their relationships with their parents and their own various love affairs, marriages, separations and divorces. The marriage of Charles and Diana is scrutinised to reveal the principle reason for their marital breakdown.

For more than a decade the supporting cast of royals stole the limelight as their marriages fell apart in acrimony; but now, with nearly 50 years on the throne and her children more settled, the Queen is returning to centre stage. This compelling book looks at Elizabeth II's plans for her own future as she wrestles with the uncertainty of what lies ahead for the House of Windsor.

Nicholas Davies is a freelance journalist and author and has written widely on Britain's royal family, including books on the late Diana, Princess of Wales.