Meghan Markle revealed she went on a secret night out with Princess Eugenie, Jack Brooksbank and Prince Harry before their relationship was made public.
In 2016, the Duke and Duchess of Sussex had been dating for four months and were very much in love.
Their relationship was still secret, so most of their early dates took place in private restaurants or at each other's homes where they knew they were safe from prying eyes.
But as they grew stronger, they started venturing out into the outside world.
While in Meghan's Canadian hometown, Toronto, the pair wanted to celebrate Halloween, so they came up with a plan.
Meghan revealed that she and Harry, along with Princess Eugenie and her now-husband Jack Brooksbank went on a night out at Soho House in Toronto - but to make sure nobody recognised them, they went in disguise.
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Meghan cast her mind back to the night while having a chat with Ellen DeGeneres in a talk show interview.
She said: "He came to see me in Toronto and our friends and his cousin Eugenie and now her husband Jack, they came as well.
"And the four of us snuck out in Halloween costumes to just have one fun night on the town before it was out in the world that we were a couple.
Ellen said: "So you went with Harry to a Halloween party and they had no idea it was the two of you?"
Meghan confirmed this, saying: "It was a post-apocalypse theme, so we had all this very bizarre costuming on, and we were able to just have one fun final night out."
But it was this night that Prince Harry received a call that would change their relationship forever.
In an unauthorized biography, Finding Freedom, authors Omid Scobie and Carolyn Durand, the authors said the pair were having the "perfect night out" - "until they received a call from one of Harry's aides at Kensington Palace. It wasn't good news."
The couple were told that the press had discovered they were dating. The next day, their relationship would be announced all over the world.
So, the Halloween party was the last opportunity that Meghan and Harry would be able to celebrate their relationship privately.
It appears Eugenie has remained close to Harry following his and Meghan's choice to stand down from the royal family, as they were seen together at the Super Bowl in the US last week.
The royal pair were pictured together in the stands - although were without Meghan and Eugenie's husband Jack.
According to royal expert and biographer Duncan Larcombe, Eugenie publicly supporting Harry at the Super Bowl shows she is "breaking ranks" from the rest of the royals.
He told OK!: "The royals have stayed quite consistent and firm when it comes to Harry and Meghan, as we’ve seen.
"Eugenie is breaking ranks from the rest of the royals by being seen so publicly to endorse Harry and Meghan in their new life. It endorses what they said about the royals.
"There are those that think that Eugenie is Harry’s only hope of him being brought back in should things not work out in paradise, so at least he is talking to someone in the Royal Family. By seeing Eugenie there, it looks like the only link he still has with his family."
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