The royal family is reportedly in full panic mode right now over the release of an upcoming book that has been green lit by Prince Harry and Meghan Markle and will tell the story of turbulence between him and his brother Prince William.

The U.K. Express reported that royal expert Russell Myers said members of the royal family are terrified about how they will be portrayed in the new book.

“This book is coming out, it’s call Finding Freedom,” Myers said. “It’s the unofficial biography of Harry and Meghan and royal aides are quite worried about what sort of light it’s going to paint Prince William in. He’s been called unsympathetic and unfeeling in the book. Royal aides have been meeting behind the scenes preparing for the worst.”

“Some say that it could be the Diana moment from the Panorama 1995 interview that we all remember when she spoke about the three people in the relationship,” Myers added. “The two authors behind this book have had unrivaled access to Harry and Meghan’s inner circle. They’ve interviewed over 100 people. It could be a very, very positive thing for Harry and Meghan but may paint other members of the Royal Family in a particularly bad light.”

Insiders have previously said that royal aides are worried the book will only tell Harry and Meghan’s side of the story, and will throw the rest of the royals under the bus.

“They are worried William especially will be portrayed in a bad light,” one source said. “This sort of family spat shouldn’t be out there in public. This shouldn’t happen to future monarchs. The book could be the most damaging thing to the Royal Family since Prince Diana’s interview on Panorama with Martin Bashir.”

Harry and Meghan shocked the world earlier this year when they announced that they were stepping down as senior members of the British royal family. This came after a rift formed between Harry and William, as well as between their respective wives, Meghan and Kate Middleton.

Harry and Meghan have since moved to Los Angeles, California, where they have been living in the $18 million home of Tyler Perry while they search for a home of their own in the area.