A murder during the Ceremony of the Keys sends shock waves through the Tower of London. John Mackenzie, former army psychologist and latest member of her Majesty's Yeoman Warders, suddenly finds himself in the role of undercover investigator. Superintendent Simon Whittington – unscrupulous, ambitious, magnetic, and John's nemesis from their childhood days – seems to have the case wrapped up quickly. But did he really arrest the right man? John becomes embroiled in a dangerous quest for the truth. Fortunately, he can rely on the support of the inimitable Mackenzie clan!

A real treat for me: The Palace´s answer after I had sent John Mackenzies first case to HM back in 2016!

I have to say that I do feel honored....