It is well known that the UK had a London Bridge strategy for Queen Elizabeth II's ultimate demise.
However, a plan known as Operation Unicorn included particular preparations in case the queen passed away while visiting Scotland.
The lion of England and the unicorn of Scotland, the country's national animal, are both shown on the royal coat of arms.
The 96-year-old monarch passed away at Balmoral, her secluded Highlands home, with all her close relatives flying in to be at her side.
Operation London Bridge elements were already in place, such as BBC presenters donning black attire and networks switching to rolling news.
The phrase "Operation Unicorn" was first used in the online journals of the Edinburgh parliament in 2017, referring to a massive influx of people arriving in Scotland if the Queen passed away there.
The newspaper said that the Parliament, the nearby Palace of Holyroodhouse, and St. Giles' Cathedral would be the major focal areas if the Queen passes away in Scotland.
The cathedral is one of Edinburgh's most significant medieval cathedrals, and the palace is where the monarch resides in an official capacity.
Politicians will instantly halt all legislative activity, so they may draught a resolution of sympathy and get ready for a state burial. At Holyrood, the parliament will have a book of condolences for the people to sign.
The Herald was informed by a source in the parliament that thousands of people may travel to Scotland if the Queen passed away.
The article stated that if the Queen passes away in Scotland, her remains will repose at Holyroodhouse before being transported in a casket to the church on the Royal Mile (in Edinburgh).
At Waverley station in Edinburgh, her body will be loaded onto the Royal Train for a trip along the east coast mainline to London.