According to Duncan Larcombe, author of Prince Harry: The Inside Story, Harry is no happier now than he was in the UK.

It comes after the Duke of Sussex unleashed another blistering assault on the Royal Family, with royal author Duncan Larcombe warning that the new outburst may “end in disaster for Harry” since he is “burning bridges, left, right, and center.” Harry made an apparent dig at his father, Prince Charles, on the podcast Armchair Expert with Dax Shepard last week.

Mr Larcombe, a royal expert, said, “I believe that, despite Harry’s insistence that he’s happy, he’s far from it.

“I don’t think he or Meghan are happy. Content people don’t create arguments and criticise people – content people want to make amends. “

He added Harry is “clearly in the very midst of his mental-health journey and causing pain to his own family.”

Mr Larcombe said: “The cause of all his anger and sadness was never the royals – it was the trauma from his mum dying when he was a child.

“That’s where the issue lies – I don’t think he’ll be truly happy until he works through that.

“He has now made the royals and the institution his enemies because of that – he’s on the warpath.”

The royal expert thinks Meghan has helped Harry open up about his past experiences, but maintains in interviews that the Duke is “desperately trying to convince himself that he has found happiness.”

“I think what we see and hear from these interviews is a man who is desperately trying to convince himself that he has found happiness, and he has been through it all and reached the other side – that he’s finally free,” Mr Larcombe said.

“I don’t think that’s the case. He and Meghan aren’t happy or free. I don’t think his move to LA has solved anything.”

The Duke and Duchess of Sussex have stepped down from key royal responsibilities and relocated to Los Angeles with their son Archie in preparation for the birth of their daughter this summer.

Earlier this year, Harry and Meghan Markle sat down with Oprah for a candid chat on life as a member of the Royal Family.

The couple claimed in a series of dramatic statements that there were “concerns” about the color of their baby Archie’s skin.

Prince Charles is said to have been so irritated by their quitting that he has stopped answering his son’s phone calls.

Harry is set to return to the UK in July to dedicate a monument to Princess Diana, but tensions with the royals persist.

As a former butler to Charles and Harry, one royal expert claims the schism between father and son has become wider.

A teaser for a new TV program using images from Harry’s mother’s burial has also fueled speculation about another assault on Prince Charles.

While raising his own children, Harry says he wants to “break the cycle” of his royal upbringing’s “pain and suffering.”

The Duke also said that he did not want to be a working member of the Royal Family in his twenties and that he now feels “free” in his new life outside of The Firm in California.