If Meghan Markle was concerned about her half-sister’s ‘tell-all’, she’s going to be even more worried about this one…

That’s the word on the street from royal commentators who are touting a new royal biography, which vows to leave ‘no stone unturned’ when it comes to Meghan’s background.

The pregnant royal has a long list of unauthorised royal biographies written about her. So what makes this one any different?

Well the author at the helm of the literary work – Tom Bower – is widely known for his ‘acid pen’ and his reputation as a hard-hitting journalist

He’s also worked on BB1’s investigative programme Panorama – the same show that aired that Princess Diana interview, where the late royal spilled the tea on her tumultuous marriage to Prince Charles.

Add to that his library of published memoirs on the scandalous lives of figures like Mohamed Al-Fayed (the father of Princess Di’s lover, Dodi), Simon Cowell and even Prince Charles.

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An insider told The Sun; “This is the book Meghan will be dreading. Tom doesn’t pull his punches, and is terrifyingly thorough in his research. No stone will be left unturned”.

And it doesn’t seem he will be mincing words either.

Bower – who has been offered a ‘six figure’ amount for the book – recently wrote of Meghan in a scathing article in The Sun; “Convinced of her own greatness, Meghan thinks she has, for years, been the victim of plots to destroy her destiny. While others shone in leading roles, Meghan had bit parts.”

Ouch!