Prince Harry's memoir has officially hit bookstores in the United Kingdom and elsewhere around the globe. Here in London, several retail chains opened their doors at midnight to allow eager readers to grab their copies before sunrise.

There have been plenty of revelations from leaks in the run-up to the chaotic launch of “Spare” over the past week but the sensational, and sometimes inflammatory, headlines have been lacking the context of the full book. What's now clear is Harry's years-long frustration at playing second fiddle to his brother. His memoir reveals the full extent of his despair at playing the royal understudy to William and his treatment by certain family members and the wider institution.

Harry's version of events is an eye-opening telling of a royal experience that may be perceived externally as luxurious and privileged but for him has also been traumatic and heart-breaking. Publisher Penguin Random House had promised “raw, unflinching honesty.” There was certainly that, and more besides.

The Duke of Sussex holds almost nothing back as he dismantles the public's perception of him being the fun-loving, care-free party prince, delving into the devastating impact of his mother's death, experimenting with drugs as a method of coping with grief, and his struggles at finding love.

It is at points scathing and hypercritical toward several family members, who are not defending themselves as the palace is not responding to the claims, and reveals deeply personal conversations despite Harry's previous railing against the media for invasions of privacy.

The royal establishment may be internally aghast at Harry's decision to air the family's dirty laundry to the world, but externally there has been a wall of silence, with both Buckingham Palace and Kensington Palace repeatedly declining to comment.

The 410-page tome isn't just scandalous bombshells about toxic family dynamics, though.

Another theme is the lifelong sibling rivalry between Harry and William and how their positions as “heir” and “spare” have pulled them apart. Parts of the book feel like a hit job on William but Harry has claimed that's not his intention. He appears to be trying to show that his brother is partially a product of a dysfunctional institution, where distrust and competition has been baked into the culture. He does recount instances where things have gotten heated -- both verbally and physically -- but he also comes to his sibling's defense too.

Harry recalls how the “papers were awash with stories about Willy being lazy” which he characterizes as “obscene” and “grossly unfair.” William was not only “busy having children and raising a family,” Harry writes, but he was “still beholden to Pa (as King Charles is referred to throughout the book).”

“He did as much as Pa wanted him to do, and sometimes that wasn't much, because Pa and Camilla didn't want Willy and Kate getting loads of publicity,” Harry adds. “Pa and Camilla didn't like Willy and Kate drawing attention away from them or their causes. They'd openly scolded Willy about it many times.”

The Duke of Sussex's hatred of the tabloid press is also weaved throughout the book. He frequently details the invasive methods used by the paparazzi before dramatically claiming some of “the firm” fed negative stories to the media in efforts to curry favor with journalists for their own favorable coverage. He specifically calls out his stepmother Camilla as one of those who he believed engaged in such practices.

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Some commentators are picking up on a few notable omissions in the book, particularly the furor that emerged after Harry and Meghan told Oprah there had been “concern” from within the family over the color of their child Archie's skin.

When asked by Anderson Cooper why it wasn't mentioned in the book, Harry said the remarks had been misconstrued by the British media. “Neither of us believed that that comment or that experience or that opinion was based in racism. Unconscious bias, yes,” the prince responded. “The key word was 'concern' as opposed to 'curiosity.' But the way that the British press, what they turned it into, was not what it was.” He and Cooper then discussed how he'd also said back then that he would not discuss it further and they moved on.

Harry may not want to expand on this issue further but many observers have criticized the duke for failing to set the record straight sooner, especially when he has slammed his own family for not correcting inaccurate headlines in the tabloid press.

Some may say they aren't interested in the British royal family drama or are growing tired of it, but “Spare” shot to the top of Amazon's best sellers list upon its release. There wasn't a rush on bookstores Tuesday morning but retailers told CNN they had piles of pre-orders ready to ship out. By Tuesday afternoon, its publishers claimed it was the fastest-selling non-fiction book ever, with 400,000 copies in hardback, ebook and audio formats snapped up, Britain's PA Media reported.

“We always knew this book would fly but it is exceeding even our most bullish expectations,” Larry Finlay, managing director of Transworld Penguin Random House, said.

One thing is clear: the Sussexes are becoming increasingly divisive characters and each new release or interview has reinforced both supporters and critics.

Broadly speaking, here in the UK, there has been some incredulity over Harry's stated desire to mend fences and that “none of anything I've written, anything I've included is ever intended to hurt my family,” as he told Cooper in a pre-release interview, while simultaneously releasing a book that both criticizes them and puts the monarchy in a very unflattering light.

A majority of Brits polled by Savanta on the eve of the book release did not trust Harry to deliver an accurate depiction of his experience in the royal family -- 53% said they did not trust Harry to do so in his book, while 39% said they did trust him.

Younger people (18-34 year olds), those who said they voted for Labour, the liberal opposition party, in the last election, and those who described themselves as republicans rather than monarchists were more likely to say they trusted Harry.

CNN royal historian Kate Williams says Harry's account tarnishes the monarchy and raises questions about its structure.

“Even though he says he supports the monarchy, he does blame it for so much of what went wrong,” she says. “We have a situation in which one child gets everything and all the attention and the next child gets nothing. But also is sold out to the press and that is why he was so unhappy and that is why he felt like he had to leave.”

The family rift also threatens to overshadow the biggest royal event of the year: King Charles III's coronation in May. In an interview promoting his book, Harry was noncommittal about whether he and Meghan would attend.

Planning for the event should be well underway, with the big day fast approaching. It would go against the spirit of the occasion to exclude anyone, especially family members -- whether it's the Sussexes or Prince Andrew, who was forced to step down from royal duties amid a sexual abuse scandal last year.

“It would help Charles a lot in terms of his image if Harry and Meghan were there,” Williams says. “It's particularly going to look bad for him if his son is not there because, of course, Harry still is very high in line to the throne, as are his children.”

She adds that, “Charles would want him to be there, and Charles would want Meghan to be there” and recalls that many were thrilled to see the couple return for the Queen's Platinum Jubilee last summer.

No one from the palace has said the Sussexes are not invited, so it is assumed that for now they remain on the guest list. Then it's up to them whether they choose to come and celebrate with the new sovereign.

“I miss the UK, I miss my friends,” Harry said in his Netflix show. “I came here [the US] because I was changed. I'd changed to the point of I'd outgrown my environment.”

Does that mean he and his family won't return in May? Time will tell, but he did also mention missing “the weird family gatherings when we're all brought together under one roof at certain times of the year.” (CNN)

•PHOTO: The Sussexes during celebrations for the late Queen's Platinum Jubilee last June. Credit: Toby Melville/Pool/Reuters

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