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'''''Agatha Christie's Great Detectives Poirot and Marple''''' (アガサ·クリスティーの名探偵ポワロとマープル '''''Agasa Kurisutī no Meitantei Powaro to Māpuru?''''') is an anime television series that adapted several Creator/AgathaChristie stories about Literature/HerculePoirot and Literature/MissMarple. Run from 2004 to 2005, a total of 39 episodes.

A new character named Mabel West, Miss Marple's great-niece, who becomes Poirot's junior assistant, is used to connect the two detectives. The series is a generally faithful adaptation of the original stories given the time constraints (typically one 25 minute episode for a short story, four episodes for a novel). Despite being a modern Japanese adaptation, the original (mainly English) locations and time period are retained. The most obvious story change is the addition of Mabel West and her pet duck, Oliver. However apart from her soliloquies, most of her lines are taken from the incidental dialogue of other characters in the original stories, so her presence does not materially alter the plot development.

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!!''Agatha Christie's Great Detectives Poirot and Marple'' provides examples of the follwing tropes:

* AdaptationalAttractiveness: Hastings looks much younger and better looking than usual. Also, Miss Lemon was ugly in the original stories, while here she has good-looking features.
* BigFancyHouse: Several feature in the series.
* BigOlEyebrows: Many characters in this series have big eyebrows, like Hercule Poirot, Inspector Sharpe, Constable Hearst or [[Literature/TheABCMurders Alexander Bonaparte Cust]].
* CanonForeigner: Mabel West and Oliver were not created by Agatha Christie.
* CatStereotype: In one of the episodes, a black cat crosses someone's path. In keeping with British and Asian tradition, it is associated with good luck.
* CompositeCharacter: Most of Mabel's lines are taken from the incidental dialogue of other characters in the original stories. Also, Inspector Sharpe, who only appears in ''Hickory Dickory Dock'', takes the role of Japp. It is believed that this is because Japp sounds like Jap, [[https://en.wikipedia.org/wiki/Jap an offensive way to call a Japanese]].
* GenteelInterbellumSetting: The setting of the stories.
* GreatDetective: Both Poirot and Miss Marple are superb detectives.
* InCaseYouForgotWhoWroteIt: Agatha Christie, the original author of the stories portrayed, is mentioned in the title.
* InspectorLestrade: Inspector Sharpe is a UsefulNotes/ScotlandYard police detective that works with Poirot on most of his cases. While he is reasonably competent, it is always Poirot that is able to solve the mystery first. There is also Inspector Slack in ''Tape-Measure Murder''.
* LittleOldLadyInvestigates: Miss Marple is an elderly AmateurSleuth that investigates various mysteries.
* TheMafia: Plays a role in "The Riddle of the Cheap Flat"
* MysteryArc: Nearly all the episodes use some variation on this.
* PreviouslyOn: Present in the cases that last two or more chapters, like adaptations of novels. At the begiining of them, Maybelle does a recap of the advances in the case within the previous chapter.
* RidiculouslyCuteCritter: Oliver (Maybelle's pet duck).
* SailorFuku: Maybelle sometimes wears a sailor suit style outfit.
* SpotOfTea: Pretty much every episode will include characters having tea together, which is something common to both Japanese and British culture.
* SpyFiction: "The Riddle of the Cheap Flat" involves stolen US Navy plans.
* TravelMontage: The anime uses the method of having a moving line on a map to indicate traveling long distances, notably in ''The ABC Murders'' chapter.
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