Former Prime Minister Liz Truss recounts the exchange in her new memoir, ‘Ten Years to Save the West.’

Queen Elizabeth II arrives at St Paul's Cathedral for a service of Thanksgiving held in honour of her 80th birthday on June 15, 2006, in London, England.

Former U.K. Prime Minister Liz Truss is looking back on her last memory with the late Queen Elizabeth II.

Truss, 48, was the last of the 15 prime ministers who served during Queen Elizabeth’s reign, and for the first time, she shared details of the last words the queen spoke to her before her death in September 2022.

Truss recounts the conversation in her new memoir, Ten Years to Save the West: Leading the Revolution Against Globalism, Socialism and the Liberal Establishment, which hit bookshelves on Tuesday, April 16.

During her meeting with the queen on Sept. 6, 2022, Truss recalled Queen Elizabeth telling her, “I’ll see you again next week.”

“I absolutely thought that would happen,” Truss writes, per an excerpt from the book obtained by the Daily Mail.

But it was just two days after that conversation when Queen Elizabeth died at 96, ending her 70-year reign on the British throne.

“I had no idea on that day that things were so imminent,” Truss said on the Daily Mail‘s talk show The Reaction, according to People. “I had no idea because she was talking as if this was the start of something. That I was the new prime minister, that she’d be there, giving me advice, sort of talking through the issues of the day.

“We had a very detailed chat for 20 minutes. She met my husband. All of those things gave me no sense at all that her death was imminent,” the politician added, after noting that the queen was “physically very frail but mentally so alert.”

The queen later died at Balmoral Castle on Sept. 8, 2022, with her cause of death eventually being attributed to “old age.”

She was succeeded to the throne by her eldest son, now King Charles III.