A series of books by Betty [=McDonald=] about a small old lady who lives in an upside-down house. She spends her time curing children's bad habits with magical cures left by her dead husband. A light-hearted critique of modern parenting with two sets of [[AnAesop Aesops]], one for children about the fact there are consequences to their actions and one for parents about how it's important to let their children learn these things for themselves.
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!!This series has examples of:
* {{Aesoptinum}}
* AppliedPhlebotinum: Various magic cures.
* BeCarefulWhatYouWishFor: The cure for children who want to stay up all night is just to ''let them.'' The children end up discovering that it's annoying to be tired all the time during the day, and then when they fall asleep at a movie première they'd been looking forward to for ages, that's the last straw.
* BecauseISaidSo: Deconstructed. All it teaches children is that their parents don't actually have reasons for saying what they do (since they can't produce those reasons when challenged), and so when the parent actually is trying to impart an important life lesson, their kid isn't going to listen to them.
* CelibateHero: Mrs. Piggle-Wiggle is never mentioned as being so much as interested in other men after the death of her husband.
* CloudCuckoolander: Mrs. Piggle-Wiggle is a bit weird with her house and animal companions. Her husband is hinted to have been a weirdo of a pirate as well.
* CoolHouse: It's literally upside-down!
* CoolOldLady: Mrs. Piggle-Wiggle.
* EarlyInstallmentWeirdness: In the first book, the cures Mrs. Piggle-Wiggle recommended were realistic, if comically exaggerated, and generally involved reverse psychology; in later books, all the cures had a magical element to them.
* MeaningfulName: ''Dick'' Thompson in "The Selfish Boy Cure", at least before his redemption.
* MessyPig: Inverted. Mrs. Piggle-Wiggle has a pig named Lester. He doesn't speak, but he does help kids with bad table manners by setting a good example. He's clean, tidy, and smart.
* FreeRangeChildren: In addition to the time period, allowing children to discover how the world works for themselves, providing help instead of controlling them, is a major theme.
* FriendToAllChildren: Mrs. Piggle-Wiggle loves kids and really understands them.
* LocalHangout: All the kids keep coming to Mrs. Piggle-Wiggle's house.
* HaveAGayOldTime: Miss Piggle Wiggle's cure for the selfish Dick is to have his label all of his items like "Dick's book. Don't touch." One of his classmates mocks this by putting a sign on his back that says "This is Dick. Don't touch."
* [[NiceJobBreakingItHero Nice Job Raising Them, Parent]]: Many of the cures are only necessary because the parents actively let it get to that point, through either overindulging a child or trying to be too controlling in general. If Herbert Prentiss' mother hadn't kept caving and cleaning up his room for him, Herbert would have discovered years ago that if he didn't want to step on blocks and wanted a place to sleep, he'd better clean it up. In other cases, the parents undermined their own authority by using BecauseISaidSo in place of actual reasons, so their children simply don't listen to them anymore because it seems like they don't know what they're talking about. Generally, Ms. Piggle-Wiggle is the last resort: only a few are GenreSavvy enough to consult an expert when a problem comes up.
* [[NotGoodWithPeople Not Good With Adults]]: Although she will happily discuss the childrens' problems over the phone when the parents call, she does not invite adult guests over or socialize with them like she does with the neighborhood kids.
* ThePigPen: Patsy
* {{Pirate}}: Mr. Piggle-Wiggle was a pirate... who left behind his treasure map and a treasure chest full of magical cures.
* APirate400YearsTooLate: Mrs. Piggle-Wiggle's deceased husband was a pirate when he was alive, and the story takes place in TheFifties.
* RadishCure: The TropeNamer and the usual method by which Mrs. Piggle-Wiggle's cures work.
* ReversePsychology: Some of the cures.
* TakeThat: Many, against the BecauseISaidSo school of parenting. Most of the cures essentially consist of allowing the child to discover that their actions actually have consequences, learning how the world works and what to do in order to obtain the desired results instead of just that father knows best.
* TeamMom: Mrs. Piggle-Wiggle.
* TheFifties: Or thereabouts.
* TheMusical: Written for Seattle Children's Theatre.
* ToughLove: Advocates a much less harsh version of the trope: parents who try to protect their kids from the real world too much will prevent them from learning how to handle it, but all of the parents in the books still love their kids and are involved with them to some degree. A lot of the parents start having problems with the cures during the part where the kid is discovering the consequences of their actions, but not stepping in to soften the blow so much that the lesson is lost is vital.
* TrashOfTheTitans: Hubert Prentiss
* TreasureMap
* WidowWitch
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