THE royal family have “very real fears” that Prince Harry’s book deal could destabilise the Monarchy and upset his father’s ascension to the throne, according to a source.
Harry, 36, is set to publish his explosive memoir in four books which he vows will examine the “highs and lows” of his extraordinary life.
The book will be put out during the Queen’s Platinum Jubilee next year.
But the second of those books is due out only after the Queen has died – which is causing fears within the firm that this could hinder the transition of power to Prince Charles.
A source told MailOnline that there is “anger and disappointment” within the palace and that the Queen is facing anxiety over the books contents.
They said that senior Palace officals made the decision not to respond publicly to the Duke of Sussex’s announcement because they feared it would “fan the flames” of his already strained relationship with Prince Charles.
Harry’s wife Meghan Markle, 39, is also set to write a “wellness” guide as part of the contract with the publisher.
Members of the Royal Family are now waiting to see what the duke will write about them.
Princess Eugenie is believed to be the only member of the Royal Family to have maintained a special relationship with the Sussexes since they moved to Los Angeles.
There are also reportedly concerns about how his dad Charles’ wife Camilla Parker-Bowles will be represented in the book.
It comes as a royal expert said Harry has well and truly “gone rogue” by announcing he is writing a memoir.
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Richard Fitzwilliams fears the “totally unpredictable” Duke of Sussex could use the book as “leverage” against the royals.
Despite being 18 months away, its release is already threatening to widen the family rift and put the royal celebration in turmoil.
The Palace has allegedly been warned they “should be afraid” of what’s to come from it.
And Fitzwilliams agrees, stating that Harry could use it as a weapon against the Firm to get what he wants – although what that is remains unclear.
He told HOAR Online: “Its mere existence is a form of a lever to potentially use against the royal family in whatever is to come.
“This book has the potential to be dynamite.
“But the thing is, what do the Sussexes really want from the royal family next? What do they want them to do?
“They have gone rogue. It is a fact. It’s incredibly worrying because they are so totally unpredictable. Anything is possible.”
He added that the memoir announcement has “complicated matters” for the Firm, and “that in itself is a very worrying development”.