Royal author reveals late Queen left a 'secret letter' for King Charles and 'we will never know what's in it'

Royal writer Robert Hardman told GBNews that the late Queen left a letter in her red box after she passed for her son King Charles.

One was also left for her private secretary Sir Edward Young. The Royal author told Camilla Tominey: "We'll probably never know what was in it and I understand that.

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