King Charles III will not reportedly hold back in punishing Prince Harry and Meghan Markle if the attacks continue.

Questions about whether Prince Harry and Meghan Markle's relationship with the royal family would ever get better emerged in the past months. There have also been reconciliation rumors that surfaced, but none seems to have brought the royal family members to a peace talk with the Sussexes.

Now, a royal author warned that the Duke and Duchess of Sussex might face the worst if they choose to continue their unfair attacks.

In an interview with The Daily Beast, Nicholl said the monarch would be ruthless toward the couple.

"There is no doubt that Charles would like Harry and Meghan to be at his coronation. And to be fair to Charles, he has been magnanimous in terms of extending, very publicly, olive branches to the Sussexes, not only in his televised accession address but also putting them front and center at the funeral events," she said, as quoted by Express UK.

Nicholl warned that King Charles III would not put up with inaccurate and unfair attacks, especially if Prince Harry repaid him with such moves instead.

The royal author also spoke about the Queen's dedication to protecting the institution. Per Nicholl, Queen Elizabeth II was ruthless, so King Charles III would be one, too.

King Charles III's Last Straw

Nicholl's comments came after sources shared similar sentiments to Radar Online.

It disclosed that the monarch would do his best in preventing Prince Harry's tell-all book from spilling "bombshell royal family secrets," even if that means exiling him for good.

Prince Harry should reportedly choose whether to cancel the release of his $20 million memoir or accept the fact that he will forever be estranged from the royal family.

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Choosing to cancel the book would fire back, as well, as Prince Harry would be forced to return the money he received from the publication. They might also need to settle the potential get-out clause.

Unfortunately, the couple has no means to give the amount back due to their mortgage.

In similar news, it was assumed that Prince William himself could not wholly forgive his brother. Like the monarch, the heir to the throne also feels worried Prince Harry might ruin the family again because of his memoir.

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