Queen Elizabeth is, allegedly, in for more embarrassment with the upcoming release of a new book centered on Prince William and Prince Harry.

According to New Idea, Battle of Brothers: William, Harry, and the Inside Story of a Family in Tumult, written by Robert Lacey will be released soon.

The book will, reportedly, detail the events that took place during the Sandringham summit earlier this year. Back then, the queen held a crisis meeting to discuss Prince Harry and Meghan Markle’s decision to quit The Firm.

Details from the private meeting have not been disclosed to the public by any member of the royal family. As such, it is unclear how Lacey gained insight about the summit.

Lacey also promises to lift the lid on Prince William and Prince Harry’s troubled relationship, starting from when they were kids up to the present time.

Battle of Brothers: William, Harry, and the Inside Story of a Family in Tumult will be released on October 15.

According to New Idea, the book is expected to cause an uproar with the queen because she was also, allegedly, upset following the release of Finding Freedom.

Authors Omid Scobie and Carolyn Durand shared details about Prince Harry and Markle’s relationship with the royal family in the book after interviewing sources close to the couple and the situation.

Some of the most shocking revelations in the book include Prince William and Prince Harry’s tumultuous relationship and their recent fights. As well as the revelation that Markle and Kate Middleton never really fought with each other.

Still, there were claims that the Duchess of Cambridge froze Markle out, and she also ignored the latter on multiple occasions.

According to Scobie and Durand, Prince Harry and Markle weren’t interviewed for the book. However, some royal experts don’t think that this is the case. After all, some of the things mentioned in Finding Freedom seem to be from Prince Harry and Markle’s accounts.

Shortly after, the Duke and Duchess of Sussex announced that they will be partnering with Netflix to release inspirational content starting next year. According to sources, the queen was once again infuriated by the couple’s decision to team up with the streaming giant.

There are also rumors suggesting that Prince Harry and Markle will be producing a documentary on Princess Diana. However, nothing has been finalized as of late.