Prince Harry has reportedly sparked major fears in Buckingham Palace that he may release a second tell-all memoir. Palace aides are said to fear the Duke of Sussex may launch a new blistering attack on the Firm in the wake of his bitter High Court battle to win back taxpayer-funded UK security.

Following his two-day visit to the UK earlier this week, Harry sensationally claimed that his UK security had been downgraded to “trap” him into staying in the Royal Family. Last night, as reported by The Sun, a source said: “This is clearly intensely personal. There are fears about what he might do if the decision goes against him. This could not come at a worse time.” Speaking to a UK publication for the first time since 2023, Harry said in an interview: “People would be shocked by what’s being held back.”

Insiders have now argued Harry’s recent explosive remark could be seen as a “veiled threat”. A source added: “There’s a lot of worry that Harry could tell all in a book deal or even follow Meghan’s lead and make a podcast. He’s hinted he has discovered secrets during the hearings — particularly regarding the treatment of him and Meghan — that would shock us all. It is a veiled threat essentially that he will tell all if it doesn’t go the way he wants it to.”