Prince Harry's upcoming memoir will go into "minute details" about his rift with Prince William, a source has claimed.
In just over a week's time, Harry's book Spare will be released worldwide and it has already been described as "explosive".
It is expected to go into detail about his relationships with his royal relatives, especially his older brother.
William has already come in for criticism from Harry in the past - in a tell-chat with Oprah Winfrey, he described his older brother as "trapped".
Meanwhile in his and wife Meghan Markle's latest Netflix series, he alleged that William left him terrified after screaming and shouting during the Sandringham summit and that Kensington Palace "lied to protect my brother” when it issued a statement denying a story William had bullied him out of the royal family.
And now a source with knowledge of the book has claimed the book will be "worse" than the royal family is expecting, especially for William.
They told the Sunday Times: "Everything is laid bare. Charles comes out of it better than I had expected, but it’s tough on William, in particular, and even Kate gets a bit of a broadside.
"There are these minute details, and a description of the fight between the brothers. I personally can’t see how Harry and William will be able to reconcile after this."
However, before the book is even released next Tuesday (January 10), two bombshell interviews Harry has sat down for will be broadcast in both the UK and US.
They will both be shown on Sunday (January 8), with the first airing on ITV at 9pm, conducted by News At Ten's Tom Bradby.
In a series of clips from the duke’s ITV conversation, Harry says he wants his father and brother back.
He adds: "It never needed to be this way,” and refers to "the leaking and the planting” before adding "I want a family, not an institution”.
He also says "they feel as though it is better to keep us somehow as the villains” and "have shown absolutely no willingness to reconcile”, although it is unclear who he is referring to.
Filmed in California where the duke now lives, ITV said Harry: The Interview will go into "unprecedented depth and detail” about his life in and outside the royal family.
Meanwhile, in a trailer for a separate interview set to air on CBS News's 60 Minutes later on Sunday, Harry also criticises Buckingham Palace over an alleged failure to defend him and his wife before they stepped down as senior royals.
Speaking to Anderson Cooper, he says: "The family motto is 'never complain, never explain’, but it’s just a motto.
"They (Buckingham Palace) will feed or have a conversation with a correspondent, and that correspondent will literally be spoon-fed information and write the story, and at the bottom of it, they will say they have reached out to Buckingham Palace for comment.
"But the whole story is Buckingham Palace commenting.
"So when we’re being told for the last six years, 'we can’t put a statement out to protect you’, but you do it for other members of the family, there becomes a point when silence is betrayal.”
CBS has described the full interview as "revealing” and Harry’s book as "explosive”.
