Gef , also referred to as the Talking Mongoose or the Dalby Spook, is the name given to a talking mongoose which was claimed to inhabit a farmhouse owned by the Irving family known as Cashen's Gap near the hamlet of Dalby on the Isle of Man. The story was given extensive coverage by tabloid press in Britain in the early 1930s. Although the Irvings' claims gained the attention of parapsychologists and ghost hunters of the era such as Harry Price, Hereward Carrington, and Nandor Fodor, contemporary media scholar Jeffrey Sconce writes that the most likely explanation is that "this 'extra extra clever mongoose' was an imaginary companion created by the Irvings' extra, extra clever daughter."
In September 1931, the Irving family, consisting of James, Margaret and a 13 year-old daughter named Voirrey, claimed they heard persistent scratching, rustling, and vocal noises behind their farmhouse's wooden wall panels that variously resembled a ferret, adog or a baby. According to the Irvings, a creature named Gef introduced itself and told them it was a mongoose born in New Delhi, India, in 1852. According to Voirrey, Gef was the size of a small rat with yellowish fur and a large bushy tail.
The Irvings say that Gef communicated to them that he was "an extra extra clever mongoose", an "Earthbound spirit" and "a ghost in the form of a mongoose" and once said, "I am a freak. I have hands and I have feet, and if you saw me you'd faint, you'd be petrified, mummified, turned into stone or a pillar of salt!" The Irvings made various claims about Gef: he supposedly guarded their house and informed them of the approach of guests or any unfamiliar dog. They said that if someone had forgotten to put out the fire at night, Gef would go down and stop the stove. The Irvings claimed Gef would also wake people up when they overslept. And whenever mice got into the house, Gef supposedly assumed the role of the cat, although he preferred to scare them rather than kill them. The Irvings say they gave Gef biscuits, chocolates and bananas, and food was left for him in a saucer suspended from the ceiling which he took when he thought no one was watching. The Irvings claimed the mongoose regularly accompanied them on trips to the market, but always stayed on the other side of the hedges, chatting incessantly.
The story of Gef became popular in the tabloid press, and many journalists flocked to the Isle to try to catch a glimpse of the creature. Several other people, both locals and visitors, claimed to have heard Gef's voice, and two claimed to have seen it, however physical evidence was lacking. Footprints, stains on the wall, and hair samples claimed to be evidence of Gef were identified as belonging to the Irving's sheepdog, as were several photos which claimed by the Irvings to depict Gef.
Margaret and Voirrey Irving left the home in 1945 after the death of James Irving. They reportedly had to sell the farm at a loss because it had the reputation of being haunted. In 1946, Leslie Graham, the farmer who had bought their farm, claimed in the press that he had shot and killed Gef. The body displayed by Graham was, however, black and white and much larger than the famous mongoose and Voirrey Irving was certain that it was not Gef. She died in 2005. In an interview published late in life, she maintained that Gef was not her creation.
In July 1935 the editor of The Listener, Richard S. Lambert (known as "Rex"), and his friend, paranormal investigator Harry Price, went to the Isle of Man to investigate the case and produced the book The Haunting of Cashen's Gap (1936). They avoided saying that they believed the story but were careful to report it objectively. The book reports how a hair from the alleged mongoose was sent to Julian Huxley, who then sent it to naturalist F. Martin Duncan, who identified it as a dog hair. Price suspected the hair belonged to the Iving's sheepdog, Mona.
Price asked Reginald Pocock of the Natural History Museum to evaluate pawprints allegedly made by Gef in plasticene together with an impression of his supposed tooth marks. Pocock could not match them to any known animal, though he conceded that one of them might have been "conceivably made by a dog". He did state that none of the markings had been made by a mongoose. The diaries of James Irving, along with reports about the case, are in Harry Price's archives in the Senate House Library, University of London.
Price visited the Irvings and observed double walls of wooden paneling covering the interior rooms of the old stone farmhouse which featured considerable interior air space between stone and wood walls that "makes the whole house one great speaking-tube, with walls like sounding boards. By speaking into one of the many apertures in the panels, it should be possible to convey the voice to various parts of the house." According to Richard Wiseman "Price and Lambert were less than enthusiastic about the case, concluding that only the most credulous of individuals would be impressed with the evidence for Gef."
Nandor Fodor, Research Officer for the International Institute for Psychical Research stayed at the Irvings' house for a week without seeing or hearing Gef. Fodor did not believe deliberate deception had occurred and molded a complex psychological theory to explain Gef based on "a split-off part" of Jim Irving's personality.
Although some psychic investigators thought that Gef was a poltergeist or a ghost, skeptics that included residents of the Isle of Man believed the Irving family had colluded to perpetuate a hoax that was originated by daughter Voirrey. An Isle of Man Examiner reporter wrote that when he caught the girl making noises, her father tried to convince him the sound came from somewhere else. According to Joe Nickell researchers have suspected Voirrey used ventriloquism and other tricks "the effects of which were hyped by family members, reporters in search of a story, and credulous paranormalists."
In 1937 Lambert brought an action for slander against Sir Cecil Levita, after Levita suggested to a friend that Lambert was unfit to be on the board of the British Film Institute. Levita said that Lambert was "off his head" because he had believed in the talking mongoose and the evil eye. Lambert was pressured to abandon his action by Sir Stephen Tallents but persisted with it and won, receiving £7,600 in damages, then an exceptional figure for a slander case, awarded because Lambert's counsel managed to introduce a BBC memo which showed Lambert's career had been threatened if he persisted with the case. The case became known as "the Mongoose Case".