Buckingham Palace is said to be on alert amid fears that Prince Harry could name the person he accused of making racist comments about his son Archie.
The Duke of Sussex is expected to release a memoir next year after signing a £15 million book deal with Penguin Random House, reports the Mirror.
One Royal insider has claimed that the 37-year-old will be under extreme pressure to identify the Royal Family member he previously claimed to have made a racist remark about Archie’s skin colour.
In a bombshell interview with Oprah Winfrey earlier this year, Prince Harry claimed that a ‘senior Royal’ made the comment when his wife Meghan Markle was pregnant - but he stopped short of revealing any names.
Royal Expert Penny Junor told The Sun: “The publishers are going to want a lot for their money, such as naming this so-called racist.
“He’s researching his mother’s life so he’s going to be talking about this parents’ marriage, the break up, the affairs.
“That could be incredible damaging for his father and Camilla. Charles is going to be king and Camilla his queen.
"The last thing they or the country need is another upsurge of anger based on what I believe to be false, false accusations.”
Harry told US talk show queen Oprah that he would never name the alleged royal racist.
He has been secretly working on a memoir for nearly a year - and it has triggered a "tsunami of fear" among royal circles.
The Royal is expected to discuss his controversial switch to America after collaborating with a top American ghost writer.
Despite profits heading to good causes, two-thirds of Brits says they are 'not interested at all' in reading it.
Over a third say it is 'inappropriate' for him to publish it.
A YouGov survey found says almost one in 10 people say he should not have signed the publishing agreement - and most won't read it.
In a statement confirming the book, the Duke said: "I'm writing this not as the prince I was born but as the man I have become.
“I've worn many hats over the years, both literally and figuratively, and my hope is that in telling my story - the highs and lows, the mistakes, the lessons learned.
"I can help show that no matter where we come from, we have more in common than we think.
“I'm deeply grateful for the opportunity to share what I've learned over the course of my life so far and excited for people to read a firsthand account of my life that's accurate and wholly truthful.”
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