Prince Harry 's highly-controversial memoir Spare has hit the shelves and sold in record numbers, but which professional writer helped the royal pour out his feelings on paper?
The book covers intimate details of the Duke of Sussex's life from his romantic relationships, the Royal Family and his mum Princess Diana, and include a host of bombshell allegations which have further widened the schism between Harry and the House of Windsor.
It is widely believed that author and journalist JR Moehringer helped write the explosive work, given it has previously been reported that Moehringer has a history of exposing father-son relationships.
One of the major themes in Spare looks at Harry's relationship with his family and other members of his family, including his brother Prince William and stepmum Camilla.
In his 2005 memoir The Tender Bar, Moehringer discusses being abandoned by his father as a child and trying to find other father figures - including his Uncle Charlie.
Meghan Markle 'to unleash her own memoirs' as Prince Harry's drops next weekIt thought Moehringer was introduced to the Duke through George Clooney, who produced and directed the film adaptation of The Tender Bar for Amazon.
Clooney and his wife Amal are friends with the Duke and Duchess of Sussex and attended their wedding in 2018.
Another theory is that Harry and Moehringer met through Netflix.
The streaming platform recently secured the rights to Nike co-founder Phil Knight's biography Shoe Dog - which was ghostwritten by Moehringer.
It has yet to be confirmed how the pair met.
Moehringer was said to have been paid $1million (£820,000) to ghostwrite Spare, Page Six reported.
He also previously collaborated with tennis player Andre Agassi on his memoir Open.
The book went into detail about Andre's past use of crystal meth and dug into his relationship with his father.
In the book, Andre recalled how his father put him through gruelling training sessions in hopes of him becoming a champion.
Moehringer was born John Joseph Moehringer in New York City in 1964.
Harry and Meghan convinced 'royals were against them' after New Year photo snubHe was raised by his single mother in Long Island and went on to win a place at Yale University.
Moehringer became a journalist and joined The New York Times as a news assistant.
In 2000, he received a Pulitzer Prize for feature writing. The story was about the tensions that evolved when a ferry opened up in a small segregated community in Alabama.