MEGHAN Markle is scheming the launch of her ultimate "weapon" to hurt Princess Kate and King Charles, claimed royal expert Tom Bower.
The royal biographer, who is known for making particularly stinging comments about the Sussexes, claimed the duchess, 42, is waiting to "drop another bomb" on the Royal Family.
Mr Bower, famous for his harsh opinions of the couple, sat down with Sun Royal Editor Matt Wilkinson on the Royal Exclusive Show.
In particularly stinging comments, even for a long-standing critic of the couple, he said: "The future for the Sussexes is pretty grim, I think they're on a permanent decline.
"But whenever they need money, whenever they need publicity to stoke their reputation, they will drop another bomb.
"We're still waiting for Meghan's own autobiography, which I'm sure she's penning, she's a good writer, and it will be filled with vitriol and filled with lies.
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"She will not tell the truth because she wants a sensational headline.
"That is the ultimate weapon she can deploy."
It comes as Mr Bower made more shocking claims that Meghan is an "agent of poison" and "doesn't seem to care" about her father Thomas Markle.
Despite drama propelled by Harry and Meghan's vile attacks in Spare, their Netflix documentary, and various bombshell interviews, the couple have stayed quiet for some time.
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But when asked if the Sussexes have deliberately "reigned in" their attacks, Mr Bower claimed Meghan seems to be plotting for something bigger.
"I think she's allowed Harry to make the running, she's reserving herself for her autobiography, that's much better for her to be seen as the silent duchess, the silent weapon in reserve," he alleged.
"Harry has said some rather unfortunate stuff."
'DAMAGING TO THE ROYAL FAMILY'
Mr Bower spoke of the Sussexes trip to Nigeria, in what was later dubbed a 'faux royal tour'.
The couple touched down in Africa for their visit in May earlier this year and danced with schoolchildren while meeting locals and officials alike.
It came as part of in their efforts to get the country to host the Invictus Games in 2029.
After the couple's success, talks of more 'fake royal tours' were supposedly on the cards.
Timeline of King Charles' and Kate's health battle
January 16: Kate is admitted to the London Clinic for abdominal surgery
January 17: Buckingham Palace announces the King has been diagnosed with enlarged prostate and that Kate underwent surgery
January 26: The Sun exclusively photograph the King arriving at The London Clinic for his 'corrective procedure'
January 29: Seen waving and smiling as he left hospital after an extra night - Kate also leaves the hospital but is not seen
February 5: Palace reveal while in hospital for his prostate operation doctors discovered the the King has a form of cancer
February 10: King issues 'heartfelt thanks' in a written statement
February 21: King tells Rishi Sunak he had been "reduced to tears" by get well cards
March 16: Royal fans spot the Princess at farm shop near Windsor
March 21: Princess of Wales and King have lunch at Windsor Castle
March 22: Kate announces via video statement that she is being treated for cancer
March 31: King attends Easter Sunday service and tales part in 'walkabout' with members of the public and aides say 'it was a significant step' as KIng had 'responded to treatment very encouragingly'
April 4: The Sun exclusively reveals King has ordered aides to 'supercharge' his diary for the summer and is 'raring to go'
April 10: King and Queen embark on break at Birkhall, in Scottish Highlands
April 26: Buckingham Palace announce King will return to public-facing front-line duties
April 30: The King marked his public comeback by visiting a cancer hospital with the Queen
May 8 and 21: Buckingham Palace Garden Parties
May 21 - 25: Chelsea Flower Show
June 6: 80th anniversary D-Day commemorations in France and UK
June 15: Kate and King Charles attend Trooping the Colour in London
June 17: Garter Day parade at Windsor Castle
June 18 - 22: The King makes an appearance at Royal Ascot
July 14: Princess Kate dazzles at the men's Wimbledon Grand Slam final
Mr Bower claimed: "The visit to Nigeria said it all. It said we are the Royal Family in a Commonwealth country, the most important probably in Africa," he alleged.
"That said it all, it was a brilliant coup. It put our Royal Family in a very difficult position, intentionally so.
"The presence of Harry and Meghan in Commonwealth countries will be absolutely damaging to the Royal Family, and of course that's a serious problem."
Archewell was contacted for comment.
It comes after shock cancer diagnoses rocked the Royal Family this year.
In February His Majesty bravely revealed he was diagnosed with the disease after going into the London Clinic for prostate surgery - the Palace previously confirmed it was not prostate cancer.
He has since returned to royal public duties with his usual energy and famous "workaholic approach".
On Wednesday, he presented the King's Speech and last month was in high spirits at his official birthday parade Trooping the Colour.
Meanwhile, Princess Kate has been largely out of the public eye since she went into the same hospital for major abdominal surgery in January.
The courageous royal later shared she was undergoing preventative chemotherapy in March.
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But, determined Kate left royal fans in awe when she made a stunning appearance alongside King Charles on the Buckingham Palace balcony at Trooping the Colour last month.
The mum-of-three also received a standing ovation when she took her seat at the men's Wimbledon Grand Slam final last week.
'DETERMINED KATE'
By Summer Raemason
Royal expert Ingrid Seward told The Sun: "It was a long held promise that Kate would take Charlotte to the finals as a special treat.
"Kate felt guilty she hadn’t been able to spend as much time as she would have liked to be with the kids because of her exhaustion after her treatment.
"Charlotte has always loved tennis and mum Kate took her to Hurlingham when she was quite young to play tennis there.
"Kate was taught by her dad Michael. William was taught by his mum
Diana and tennis is a big family thing on both sides.
"So it is a super special day for Kate to be able to share it with Charlotte and much more fun for her to have Charlotte there and explain to her the details of what is going on.
"It’s also a distraction so she does not feel she is full and centre of everyone’s attention. Charlotte is there to deflect things away from her too.
"Kate was determined to be at Wimbledon on finals day if she possibly could.
"She knew she probably wouldn’t make both days. But I feel certain we might well see George in Germany tonight with his dad."