Halloween has a shadow. The night of 30 October carries its own name across much of the United States — Devil's Night, Mischief Night, Cabbage Night, Goosey Night, Gate Night — and it has a history that runs from harmless pranks to something considerably darker.
The names
The variety tells you it spread by word of mouth rather than by design. New Jersey and parts of New York have Mischief Night and Goosey Night. New England has Cabbage Night, from the practice of leaving rotten cabbage on doorsteps. The Midwest, particularly Michigan, has Devil's Night.
The British ancestor is the same custom under a different calendar — Mischief Night in northern England, which traditionally fell on 4 November, the eve of Bonfire Night, rather than at Halloween.
Licensed misrule
The underlying idea is old and European: an appointed window in which the young are permitted to be a nuisance without lasting consequence. A pressure valve.
The classic pranks are agricultural or small-town — soaping windows, toilet-papering trees, ringing doorbells and running, lifting gates off their hinges. Nothing that does not wash off.
It is also the direct source of the trick in trick-or-treat. The bargain only makes sense in a culture where the threat is real and understood: give the children something, or they will do something. American Halloween fused that with the older European tradition of going door to door for food, and produced the formula the world now uses.
Detroit
The reason Devil's Night is remembered differently is Detroit.
From the 1970s, and peaking in the mid-1980s, the pranks in Detroit escalated into widespread arson — hundreds of fires across the city over the three nights around Halloween, concentrated in abandoned buildings in neighbourhoods that had been emptied by economic collapse. In the worst years the count exceeded 800 fires.
What ended it was not policing alone. From 1995 the city organised Angels' Night, a volunteer patrol program that at its height involved tens of thousands of residents watching their own streets. Fire counts fell back to close to normal. It stands as one of the more remarkable examples of a community reclaiming a tradition that had turned on it.
Detroit formally retired the Angels' Night name in 2018, on the grounds that the problem it was created to solve no longer existed.
Now
For most of the country Devil's Night has faded into a vague memory of soaped windows. Where it survives it is mostly harmless, and there is a real distinction between a prank that takes ingenuity and eggs thrown at an elderly neighbour's door.
If you would rather your teenagers were frightened than arrested, the directory is full of places built for exactly that.