A royal expert claimed Prince Harry would try to show his power over Prince William through his upcoming memoir. Meghan Markle's husband will unveil his life in the public eye, from his time in the military, marriage and fatherhood, but many fear the book will have a lot of explosive details about the royal family.

Prince Harry said he would write his memoir, which Penguin Random House would publish, as a man he has become and not as the prince he was. With that said, Angela Levin said the Duke of Sussex had "a lot of poison in his blood."

Talking to Palace Confidential on MailPlus, via Express, Levin accused the father of two of being "bitter and resentful." She added the prince would say what he feels today and how he sees things that "he accepted years ago as now being really dreadful."

She believed the controversial royal wanted to show his power over his brother and he might be already fed up being a spare instead of an heir. Hence, Levin alleged Prince Harry got a lot of poison in his blood about what he felt about his background and his family.

Royal writer Robert Jobson added the memoir would be "up-to-date stuff" that would feature explosive details, like who made who cry in the issue about Meghan Markle and Kate Middleton. If the book had those things and addressed those claims, it would cause major problems.

However, the exact content of Prince Harry's book remains under lock and key, but Page Six claimed it would contain "more explosive truth bombs." A publishing source claimed the memoir would be "juicy," while another said it would feature many new stories about his past that weren't revealed before, like his childhood.

Some content is even said to make the royal family nervous. However, if there's one member who should not be worried, it's Queen Elizabeth II.

Cosmopolitan revealed Prince Harry made sure there's no negative stuff about his grandmother in his book, knowing they have an extremely close bond. Talking about his upcoming memoir, the 37-year-old royal said he had worn many hats over the years, literally and figuratively. He hoped that telling his story-from the highs to the lows, the mistakes and lessons learned-would help show he had many in common with others no matter where he came from.

He also said he was grateful for the opportunity to share what he had learned in his life and excited for the people to read his story, accurately and wholly truthful, first hand. Prince Harry's memoir will be out in fall 2022, though there are assumptions it will hit the shelves in 2023.