''Kat, Incorrigible'' is a series of children's books by Creator/StephanieBurgis about Kat's adventures in an alternate Regency, with magic, revolving about her sisters' marriages and her own discoveries of magical abilities.

The books are:
* ''A Most Improper Magick'' or ''Kat, Incorrigible''
* ''A Tangle of Magicks'' or ''Renegade Magic''
* ''A Reckless Magick'' or ''Stolen Magic''
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!!Tropes featured
* AFateWorseThanDeath: invoked in a joke
* AntiMagic: Kat's abilities for this are spontaneous.
* ArrangedMarriage: One is contemplated for Elissa
* {{Blackmail}}: Kat tries this on Angeline.
* BlueBlood: The Guardians. And, of course, all of society
* ClingyMacGuffin: the mirror
* CrushBlush: Elissa, when Sir Neville is flattering
* DancesAndBalls: The climax of ''A Most Improper Magic'' starts at one
* DeathByChildbirth: Kat's mother
* DefiledForever: If Viscount Scarwood ruins you. . . .
* DuelToTheDeath: Well, a duel. Not to the death.
* GirlInTheTower: What Sir Neville did to his first wife.
* GreenEyedMonster: Attributed to Sir Neville
* TheHighwayman: Haunts the roads, and requires them to have armed guards
* HumanSacrifice: To Sulis Minerva
* ImportantHaircut: Kat does it as part of her SweetPollyOliver attempt
* IWantMyBelovedToBeHappy: Elissa. She reads too many Gothics, and tries to make the sacrifice even when it's foolish.
* IWillWaitForYou: Angeline, in front of the mother with the veto
* LoveAtFirstSight: Elissa is quite taken with a man with no money, but refuses to consider.
* LoveSpell: Angeline casts one.
* LoveTriangle: In the BackStory, as Kat realizes
* MacGuffin: The will, in ''Improper Magic''
* MagicMirror: Kat finds her mother's.
* MoreHeroThanThou: Mr. Collingwood and Elissa
* NamesToRunAwayFromReallyFast: Viscount ''Scarwood''.
* OldMaid: Stepmama was on the verge of this when she married.
* ParentalMarriageVeto: Mrs. Carlyle waves it about with great vigor.
* ThePromise: Kat vows to restore her mother's mirror
* PromotionToParent: Kat's sisters
* RansackedRoom: A burglar ransacks the house.
* SinsOfOurFathers: Kat is blamed for her mother's misdeeds
* SpeakNowOrForeverHoldYourPeace: In the opening of ''Tangle''. While the reason would have been legitimate -- the man is underage and can not marry without parental permission -- it is not, in fact, his wedding.
* SpellBook: Their mother's books, for both Kat and Angeline.
* SweetPollyOliver: Kat's first attempt to save Elissa from the arranged marriage
* TalkAboutTheWeather: Angeline complains about unintelligible conversation; must they start to talk about the weather?
* TearsOfRemorse: In the BackStory, their mother, after she revealed her magic.
* ThickerThanWater: Elissa's motive to submit to an arranged marriage.
* UnableToSupportAWife: Mr. Collingwood; Elissa can not marry him.
* WrongGenreSavvy: Elissa thinks she's the heroine of a Gothic
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