Author Omid Scobie alleged Prince Harry, 39, had abandoned his demand for an apology from the Royal family for perceived slights that had blighted his life.
Meghan, 42, “refuses ‘to dive back into the soap opera’,” he writes in extracts published in Paris Match magazine.
The book suggests only Prince Edward was worried about the state of his nephew’s mental health and alleges it was the Princess Royal who persuaded the King to evict the Sussexes from Frogmore Cottage, their home on the Windsor estate.
When the news came, in January, Prince Harry is said to have pleaded with the King: “You don’t want to see your grandchildren any more?”
Meanwhile, the Princess of Wales, 41, who has not spoken to the Duchess since 2019, had always considered her sister-in-law a rival, Scobie suggests.
“She spent more time talking about Meghan … than with Meghan,” a close friend is quoted as saying.
“Every time she hears about Meghan, Kate shudders and giggles.”
The book states that when Prince Harry did make contact, the King was “cautious” about speaking to his younger son.
“He wanted to limit their discussion to a harmless exchange,” it says. “Concerning Harry, the message that circulated in the family was not to trust him … everyone took it very seriously.”
However, Scobie reserves much of his wrath for the Prince of Wales, whom he depicts as cold and hungry for power.
He says it was Prince William, 41, who orchestrated the downfall of his uncle, the Duke of York, at the height of the Jeffrey Epstein scandal, and who was able to convince his grandmother, Elizabeth II, of punishing her “favourite son”.
Meanwhile, the King could not bring himself to hurt his brother.
“[He] was in tears because he was afraid for Andrew’s mental health,” Scobie writes.
“Charles leads with his head and his heart. William is colder. He wants the job done and he has no problem with casualties along the way.”
The book claims the Prince of Wales is impatient to become king. “The Prince of Wales can’t wait to ascend the throne,” he says.
Scobie’s first book, Finding Freedom, co-written by Carolyn Durand, made sweeping personal revelations about the Sussexes’ private lives.
The duchess was forced to admit during her High Court privacy claim against Associated Newspapersthat she had authorised an aide to brief the authors for the book.
The author has warned that Endgame will reveal moments the royal family should be “ashamed of” and described himself as one of few journalists writing about the royal family whose work was impartial and “spin-free”.