Prince Harry is understood to be adding a whole new chapter to his memoir following the death of his grandmother Her Majesty the Queen in order give his side of the funeral situation, according to a royal expert.Daily Mail’s Diary Editor Richard Eden claims that Harry will take the memoir opportunity to respond to allegations that during the Queen’s funeral he was "offended".Hi claim about Harry's memoir comes after speculation over how the Prince would handle the Queen's death in the forthcoming publication.READ MORE: EXCLUSIVE 'Frightened' Putin 'getting closer to launching nuclear strike' warns ex-RAF chiefThe Duke of Sussex is understood to have half of the £35million from the deal in the bank already, which will see him pen four books in total – all published by Penguin Random House.Eden told Palace Confidential: "Jeffrey Archer, well-connected in the published world is saying that Harry is writing a new chapter completely.”He added that conversations had been spinning around for months about how the Prince was planning to proceed with the controversial book following the Queen’s death."From what he was saying, it will be dealt with by a new chapter that will be on the Queen's funeral and the events surrounding it."It will give him a chance to address those stories about him being offended by not being able to wear his uniform and then not having the ER letters on his epaulettes.”Eden said he felt this option was "quite elegant" and would allow for the Queen to be spoken about in the right way, but would likely see the release pushed back some time."This could be a way that all the tenses are correct, referring to the Queen in the past and then having that new chapter could be a quite elegant way to do with it."It.