The Best Halloween Ever by Barbara Robinson, 2004.

Every year on Halloween, the Herdmans, who are the wildest, most awful kids in town, run amuck, vandalizing things, stealing, and bullying other kids out of their Halloween candy.  This year, the mayor has decided that he’s had enough of the chaos they cause, so he’s just going to cancel Halloween all together.  Although he doesn’t specifically name the Herdmans as the source of all the Halloween destruction, everyone in town knows that they are.  So, to the shock and dismay of all the other kids, there will be no trick-or-treating this year.

Instead, there will a safe, well-supervised (boring), school Halloween party.  The principal, who always hated Halloween anyway, isn’t happy about it, but admits that it would be better to have a party for the kids at school, with their parents present and helping out, than having them run wild in the streets with the Herdmans on the loose.  But, as every kid knows, running wild in the streets is really the heart of Halloween.  They long for the freedom of roaming the streets without adult supervision, for collecting candy to sort and trade (and, admittedly, lose to the Herdmans eventually), for staying up late, and for the surprises and magic of a real Halloween.

There isn’t going to be anything surprising or magical or even really scary about Halloween at the school.  All the kids already know that the monsters are just their parents and teachers in costume.  The only real benefit that they see to the event is that the Herdmans won’t be there because they say it sounds too boring.  But, with the Herdmans, nothing is ever what anyone would expect, and they not only show up but find a way to turn the event into something that brings back some of the surprises and real Halloween spirit that were missing from a party that was too well-organized and predictable.

Although the Herdmans are a large part of the reason why Halloween is difficult for everyone and the adults try so hard to control it, they manage to redeem themselves a little in the eyes of the other children by taking the events of the night out of the adults’ hands.  Before the other kids know it, strange things start happening at the party with a cat on the loose, worms in the witches’ brew, and children starting to disappear.  As the kids puzzle about these things and wonder where some of the other kids went, things start getting scarier (like they should on Halloween), and they find themselves following mysterious figures through the school in the middle of a black-out with a special surprise waiting for them . . .

I don’t think that this book was quite as good as the others in the series, but it was still fun.  Beth, the narrator, is correct in saying that the well-supervised Halloween party was really more for the adults than the kids.  To the adults, Halloween is kind of a bother, and sometimes, they act like all the kids, not just the Herdmans, get in their way even as they plan the school Halloween party.  At one point, Beth’s mother reminds Alice’s mother that the whole idea of the party is to do something for the children, not the adults.

The adults are so worried about keeping things orderly, safe, and convenient that they become too controlling.  Even on normal Halloweens, some of them have a tendency to overrule the kids on what they want to wear as costumes, with parents often insisting on costumes that are the least amount of bother for them to help with.  Louella’s mother insists that Louella be a pilgrim year after year just because she won a free costume once, even though Louella hates it. Really, what most of the kids like about Halloween is that it is usually a night for them, not the adults.  The kids chafe as the adults insist that they go to their orderly Halloween party and like it.  In real life, most adults know that forced fun isn’t really fun at all.

In the end, the Herdmans return all the candy that they had taken from the other kids over the last Halloweens.  Although the other kids find the Herdmans’ secret candy stash a treasure trove, much of the candy is stale.  They can eat some of it (which grosses me out, considering how old it probably is), and they have fun sorting and counting the rest.  But, the best treat for the kids was adding a sense of unpredictability and suspense to the night to bring back the real Halloween feeling.

The book is currently available online through Internet Archive.