Harry and Meghan will never resume official roles following the bombshell biography laying bare their rift with the Royal Family and their extraordinary secret courtship where the couple became 'obsessed' with each other and knew they would marry after the second date.
The couple have 'torpedoed' any chance of creating a new position with the help of the Queen and senior royals when their 'trial period' in the US ends, sources believe.
The book, which reveals their soured relationship with the monarchy in excruciating detail, is likely to scupper any hopes of renegotiating their royal duties when 'Megxit' is reviewed.
The revelations will also harm efforts to repair their rift with Harry's brother William and sister-in-law Kate, it is feared.
A royal household source said: 'The door will always be open to them as much-loved members of the family. But it's hard to see how they can now salvage the new role they wanted as "hybrid" royals, running commercial careers alongside royal duties from the US.'
Another source told the Mail: 'The review period has not yet been discussed but it doesn't seem if there is any way of going back now. Some very private family matters have now been aired in public, seemingly with their blessing. That will be hurtful.'
The bombshell biography, which Harry and Meghan insist they haven't contributed is being serialised in the Times and Sunday Times, describes in detail their first date in Soho, London, which went so well that Meghan later confided in a friend: 'Do I sound crazy when I say this could have legs?'.
Before arriving in the capital she had also told a confidant that she'd be happy for 'a nice English gentleman to flirt with' while promoting Suits in Britain.
During that first date at London's Dean Street Townhouse the couple spent three hours in conversation, Harry drinking beer and Meghan sipping martinis. Harry was said to be 'in a trance' and had told himself:
'I've got to up my game here' when trying to impress the LA-born actress.
The book says: 'Meghan had enough dating experience to know a charmer when she saw one, and Harry was obviously not at all that' - adding the couple were 'immediately obsessed' with each other and bonded over their joint 'passions for wanting to make change for good'.
According to one friend quoted in the book, Harry and Meghan 'chatted a lot' but the evening, like the night before, ended chastely, with Harry returning to Kensington Palace despite their 'electric chemistry'.
Describing how they flirted throughout, the authors said: 'A touch of an arm here, direct eye contact there.'
The pair had now met just twice but Harry already knew 'they would be together at that point', a friend said, adding of Meghan: 'She was ticking every box fast.' Meghan, who was in London visiting, documented much of her trip on social media.
Source: Read more from dailymail.co.uk
My view: Harry and his darling wife Meghan Markle have become so irrelevant, they've managed to damage their brand themselves.