Prince Harry turned a down an invite while in Edinburgh for fear that it would cause a 'huge scandal', according his memoir 'Spare'.
The Duke of Sussex was visiting his friend Henry van Straubenzee, nicknamed Henners, in Edinburgh as he made plans to visit Africa in a campaign against AIDs. During the visit, Harry spoke at length with Henners about the future and what it could hold.
In the book, Harry wrote: "The future. We wondered aloud about what it held. I worried about it, but not Henners.
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"He didn't take the future seriously, didn't take anything seriously. Life as it comes, Haz. That was Henners, always and forever. I envied his tranquility."
Harry then went on to explain that his friend was set on visiting a casino in Edinburgh, and invited the Prince along.
Harry wrote: "For now, however, he was heading to one of Edinburgh's casinos. He asked if I wanted to come along.
"Ah, can't, I said. I couldn't possibly be seen in a casino. It would cause a huge scandal. Too bad, he said. Cheers, we both said, promising to talk again soon."
Harry then had a tragic ending to his friendship with Henry, as he died in a car crash just before Christmas 2002 - when Harry was just 18-years-old.
In the memoir, the Duke said: "I only dimly recall holding the phone, hearing the words. Henners and another boy, leaving a party near Ludgrove, drove into a tree...They didn't bother with seatbelts...Just like Mummy.
"And yet, unlike Mummy, there was no way to spin this as a disappearance. This was death, no two ways about it.
"Also, unlike Mummy, Henners wasn't going that fast. Because he wasn't being chased. Twenty miles an hour, tops, everyone said.
"And yet the car went straight into an old tree.
"Old ones, someone explained, are much harder than young ones."
Prince Harry's tell-all memoir, Spare, is out now and can be purchased from most supermarkets and retailers in the UK.
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