An American millionaire will be hiding thousands of pounds of cash across London this weekend for the general public to find.
Jason Buzi, 43, first carried out the stunt in America by hiding tens of thousands of dollars for people to find by tweeting cryptic clues to the envelopes.
On Saturday he intends to hide 20 envelopes each containing around £100 in a yet to be disclosed central London park.
The real estate investor said he was also considering whether to expand the game to the rest of the UK.
He told the Daily Telegraph: “Londoners are big Twitter users so I'm sure there will be quite a crowd.
“You guys seem to love a treasure hunt so it could become a scramble for the money."
The money "drop" in London will be made by a British member of the HiddenCash team based near Birmingham, which is also being considered as a location.
So far there have been hunts in Los Angeles, New York, Chicago and Houston, making London the first hunt outside America.
There are also plans to take the treasure hunt to Madrid and Paris in the coming weeks.
The @HiddenCash Twitter account Mr Buzi has used to promote the game has attracted more than 600,000 followers.
He was outed as the brains behind it after an American television news show used a voice recognition expert to identify him.
The Palo Alto-born property magnate, who claims to be among America's richest 1%, has been accused of turning charity into a social media competition.
Responding to the criticisms, he has claimed that he was not born wealthy and is just trying to give back.
He also says that HiddenCash is a way of bringing people together to have fun which just happens to feature money.
Mr Buzi previously tried a different method of giving money to the needy called Cash Tomato, with 100 US Dollar bills hidden in boxes around San Francisco.
He found that scuffles broke out among homeless people and after experimenting with several formats came up with HiddenCash.
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