Harry and William’s relationship is hanging by a thread before the tell-all book

Prince Harry’s connection to William “hangs by a thread” ahead of the release of his all-encompassing memoir, sources have claimed.

It is claimed that the brothers’ strained relationship is likely to be further damaged by attacks on the Prince of Wales and his wife Kate in the book, which is due out next week.

The Duke of Sussex is expected to claim in Spare how unfair it was that he was always forced to play “second fiddle” to his older brother, the heir to the British throne.

The memoir is said to be “tough on William” and includes a description of a fight between the two and “a broadside” against Kate. The book is due out next week on January 10th.

Harry was also reportedly warned that Camilla, Queen Consort’s reputation was a “red line” for his father, King Charles.

Sources say that while the king is deeply hurt and confused by Harry’s actions, he is still keen on keeping a line of communication open, however cautious. “Whether Prince William would be as receptive is another question,” a source said.

‘Things are hanging by a thread as they are over the past few months and from the sound of it, Harry’s memoir is unlikely to help.’

MORE: Harry’s memoir ‘will be tough on William and leave no chance of reconciliation’

MORE : Charles and Camilla on New Year’s tour before Harry releases memoir

While Buckingham Palace has declined to comment or engage in a public row with the Sussexes, there is a level of “concern” about Harry’s memoir.

A source told the Sunday Times they believed it would do “irrevocable damage” to the brothers’ relationship.

The source said: “In general, I think the book [will be] worse for them than the royal family expected. Everything is disclosed. Charles comes out better than I expected, but it’s particularly tough on William, and even Kate gets a bit of a broadside.

The book will effectively center around the sibling rivalry between Princes Harry and William, a source told The Sun.

They said it will show that Harry’s “bitterness and feelings of injustice” over his older brother’s birthright to be king means he has always “played second fiddle to older William”.

But their mother Princess Diana warned the siblings that they “must never fight” as they need each other, the source said, adding that it was “very sad” that their argument had come to this.

It comes just weeks after the highly anticipated second episode of Prince Harry and Meghan Markle’s explosive new Netflix docu-series was released.

During the episodes, Harry claimed that Meghan “threatened” the royal family because she was so popular, and Meghan claimed that the company would not allow her to get help for her mental health issues.

Get in touch with our news team by emailing us at webnews@metro.co.uk.

For more stories like this, Visit our news page.