the Cottingley fairies fooled Sherlock Holmes' creator with HATPINS and a children's book

This one's gold because it's not even ghosts, it's two kids and a camera, and they ran it for sixty years. Cottingley, near Bradford, 1917. Frances Griffiths, nine, just over from South Africa, staying with her cousin Elsie Wright who's sixteen. Frances gets told off for coming back with wet shoes ……