A possible final non-official photograph of the Queen sheltering under a gazebo has shown the ailing monarch happily enjoying a pipe band play.
The snap - said to be taken at Balmoral in late August - sees the sovereign outside in a long coat and sunglasses.
Wearing a tartan skirt, she keeps warms as she sits with her hands crossed as the music plays.
Sources say the Queen was “buoyant” in her last days, despite her declining heath.
She still attended dinners with guests, who were asked not to dress up, at the weekend before her death and was said to be in "sparkling form".
Insiders say the Queen was determined to swear in Liz Truss as Britain's new Prime Minister, where she was photographed in what is understood to be the final snap of the 96-year-old.
The Sun says Her Majesty was advised by concerned aides that she should consider asking Prince Charles to perform the duty instead.
She refused and ploughed on to confirm the new PM, asking her to immediately form a government.
"Of course I have to, it’s my job,” Palace sources have claimed she told the worried courtiers.
Spending around 45 minutes with the outgoing Tory leader Boris Johnson, the Queen was “bright and focused” throughout according to the ousted Prime Minister.
On Monday, thousands of people will say goodbye as she is laid to rest with her beloved husband Prince Philip at the state funeral.
The King and senior royals including his sons the Prince of Wales and Duke of Sussex, as well as Princess Royal, Duke of York, will again march behind his mother as she is moved from Westminster Hall to Westminster Abbey.
Police are expecting a million people to line the streets - and they say they are prepared for what's ahead.
A 'ring of steel' is in place around Westminster Abbey with 10,000 officers on the ground for Monday's state funeral in the largest policing operation ever seen in Britain.
Earlier this week, mourners planning to attend the Queen's funeral have been told to be constantly on their guard for potential terrorists who would seem "blatantly out of place" and uninterested.
Former counter-terrorism police chief Nick Aldworth, who was the national co-ordinator until 2019, said it is vital well-wishers be extra vigilant on Monday.
He advised members of the public to instantly report anyone who appears more interested in what the police are doing and are acting secretively.
"We are looking for people who are blatantly out of place," Mr Aldworth said.
"The ones who really aren't paying any attention to what's going on, they are not interested in the ceremonial events. They might be overly observing police officers or cameras.
"They will be potentially acting furtively. We all know when somebody's out of place. Those are the people that the public need to be reporting.
"The police are calling for the public to be vigilant. That's not a bland cliche, there's a long history of terrorism and crime being disrupted by public observation."
