The Caledonia Mills Fire Spook

Caledonia Mills is a small community in Antigonish County, Nova Scotia, about 25 kilometres south of Antigonish. In the winter of 1922 one household there drew the attention of the continent. Alexander MacDonald, a farmer, and his wife, Janet. And their adopted daughter, Mary Ellen MacDonald, aged 14 or 15 in accounts of the case. She would be remembered as "Mary-Ellen Spook".

January 1922. Fires began to break out inside the house, small blue fires with no cause anyone could find. The family said they started in rapid succession, in places not close to either wood stove. Neighbours Dan and Leo MacGillivary saw some of them. By the end of one night, 38 fires had been put out.

In the barn, the cows were found unfastened. Later accounts tell of cattle moved when no one was there, ashes mixed into the stored milk and tails braided. On 12 January the family left the house. The fires threatened to destroy their home and endanger their lives.

The Halifax Herald sent reporter Harold B. Whidden. Detective Carroll of the police went too. They spent two days and two nights in the house. On the second night, noises came from the floor above, unlike anything Whidden had heard before. Retellings describe footsteps, as if someone were pacing in the bedroom upstairs.

Then, on the floor beside Alexander MacDonald, Whidden felt it. "I distinctly felt a blow on the flat part of my left arm above my elbow." The blow came through several layers of clothing and a horse-rug. Carroll and MacDonald both denied touching Whidden. Carroll had just felt pressure on the left forearm. Whidden later wrote an explanation that would "sound monstrous and incredible to some", and insisted "There was not one word of exaggeration in it."

In March came Dr Walter Franklin Prince, research officer of the American Society for Psychical Research. During the visit Whidden produced automatic writing from a "communicator" who claimed to have caused the fires.

On 15 March 1922, in Halifax, Prince released his findings. There was no ghost. The fires "were undoubtedly set by human hands, judging by the unmistakable signs left in the house." "The burns are never found on the wall paper higher than the reach of a person five feet tall."

Fragments of a glove and a match lay in a recess above a door, untouched by fire. A bottle of odourless flammable liquid sat on a beam. Prince attributed the fires, the loosened cattle and the braided tails to Mary Ellen, but held that she was not mentally responsible and had acted in a dissociated state. The slaps, he suggested, were imagined, or the men had slapped each other.

Not everyone was convinced, and Arthur Conan Doyle is reported to have said "I have no doubt at all that the spiritualist explanation of the Antigonish mystery was correct." Author Monica Graham reads Prince as concluding that Mary Ellen "was a poltergeist", a channel for spirits. Prince never called it deliberate fraud. Whidden could never explain who unfastened the cows. What became of Mary Ellen is uncertain, though some accounts say she moved to central Canada and lived to old age.

The Fire Spook stands beside the Great Amherst Mystery among Nova Scotia's classic poltergeist cases. It has inspired books, podcasts and, in 2025, a four-part docuseries, The Fire Ghost of Caledonia Mills. Its producer, Mariah MacDonald, does not believe the girl started the fires. She thinks the property is still haunted.