Over a breakfast of hot coffee, brown toast, Oxford marmalade, and an egg that had been produced by a chicken, the two men chatted about everything from England’s chances in the forthcoming Test series against the South Africans—Harry felt that England would win, the ambassador wasn’t convinced; the abolition of hanging—Harry in favor, the ambassador against; Britain joining the Common Market—something they were able to agree on. They never once touched on the real reason they were having breakfast together.

When the trolley was removed and they were once again alone, Trevelyan said, “Forgive me for being a bore, old chap, but would you be kind enough to carry out the exercise one more time?”

Harry returned to the ambassador’s desk and wrote out the list for a third time.

“Remarkable. I now understand why Sir Alan chose you.” Trevelyan led his guest out of the room. “My car will take you to the airport, and although you may think you have more than enough time, I have a feeling the customs officials will assume I have given you something to take back to England and you will therefore be subject to a lengthy search. They are right, of course, but fortunately it’s not something they can get their hands on. So all that is left for me to do, Mr. Clifton, is to thank you, and suggest that you do not write out the list until the wheels of the aircraft have left the tarmac. You might even feel it advisable to wait until you are no longer in Soviet airspace. After all, there’s bound to be someone on board watching your every move.”

Sir Humphrey accompanied his guest to the front door and they shook hands for a second time before Harry climbed into the back of the Rolls-Royce. The ambassador remained on the top step until the car was out of sight.

The chauffeur dropped Harry outside Sheremetyevo airport, two hours before his flight was due to take off. The ambassador turned out to be correct, because Harry spent the next hour in customs, where they checked, and double-checked, everything in his suitcase, before unstitching the lining of his jacket and overcoat.

After they had failed to find anything, he was taken to a small room and asked to remove his clothes. When their efforts failed yet again, a doctor appeared, and searched in places Harry hadn’t even considered before, but certainly wouldn’t be describing in graphic detail in his next book.

An hour later, his case was reluctantly given a chalk cross to show it had been cleared, but it never did turn up in London. He decided not to protest, even though the guards at customs also failed to return his overcoat, a Christmas present from Emma. He would have to buy an identical one from Ede & Ravenscroft before he drove back to Bristol as he didn’t want his wife to find out the real reason Sir Alan had wanted to see him.

When Harry finally boarded the plane, he was delighted to find he’d been upgraded to first class, as he had been on the last occasion he’d worked for the cabinet secretary. Equally pleasing, no one had been allocated the seat beside him. Sir Alan didn’t leave anything to chance.