One of the most bizarre world records was set this afternoon at historic Temple Newsam in Leeds .
Four hundred and forty three people turned up wearing deerstalkers, puffing on pipes and brandishing magnifying glasses to help set a new world record for the most people dressed as Sherlock Holmes.
Today's gathering of amateur sleuths, smashed the previous record of one hundred and thirteen and was all in a good cause - to help raise funds for a new Yorkshire Brain Research Centre.
A world record attempt for the most people dressed as Sherlock Holmes takes place today at Temple Newsam in Leeds. The Sherlock festival gets underway at 12.30 with the world record attempt at 2.30 sharp.
Sherlock Holmes, one of the most popular consulting detectives of all time, is on the case to help raise money for one of Europe's largest teaching hospitals - the Leeds Teaching Hospitals - to raise funds for a new Yorkshire Brain Research Centre.
The Guinness World Records attempt promises to be the biggest Sherlock party ever. Entry fee is £15 and every participant will receive a Deerstalker hat, pipe and magnifying glass on the day of the event.
The minimum number of people required to set a new Guinness World Records title is 250 participants.
It's a story that has been told in film and television and it's now coming to a stage near you.
Sherlock Holmes: The Best Kept Secret premieres at the West Yorkshire Playhouse from Saturday and stars some familiar faces including former Heartbeart heartthrob Jason Durr.
We sent Daniel Harris to uncover the secret.