Photographer Graham Morris recalls ghostly encounter
31 October 2011 Last updated at 15:55 GMT
In 1977, an 11-year-old girl found herself at the centre of a ghost mystery.
Janet Hodgson was photographed in mid-air wearing her red nightdress and visibly screaming while two other children looked on.
She was apparently channelling the spirit of a former resident who had died in the Enfield house many years before.
Graham Morris took the original photographs and told Radio 5 live's Stephen Nolan what happened the night he visited the house.
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