This is a classic FairyTale written by Creator/HansChristianAndersen, about a mermaid who seeks to become human.

In this tale, mermaids live for centuries but have no afterlife. The youngest mermaid of the royal family is allowed to go up to the surface once she turns 15, and for several years in a row she longingly drinks in the tales her older sisters tell her of what it is like up there. When her time comes, she rescues a human prince from a storm and falls in love with him.

She then makes a deal with the Sea Witch to become human, but at heavy cost. The Sea Witch grants her legs and inhuman grace, but it will feel painful to walk, as if she is always stepping on swords. The mermaid also gives her tongue as payment. If she can make the Prince fall in love with her and marry her, she can gain a share in his soul and be human all her life, but if he marries another, she will die at the next dawn after his wedding day.

The prince she loves finds her and, charmed by her grace, takes her in and makes her a sort of pet.

Then he is betrothed, and his intended bride turns out to be the temple maiden he fell in love with at first sight when she found him on the shore after the little mermaid rescued him from drowning. As the mermaid mourns, her sisters appear to her with a LastSecondChance -- she can kill the prince with the enchanted knife they give her and live out her centuries as a mermaid -- or she will die at dawn. Unable to murder the man she loves, the mermaid throws herself into the sea.

Andersen revised the tale twice, first to change the sad ending to a bittersweet one ([[WordOfGod which he said he intended from the beginning]]), and then to make the ending have more of a moral to it.

The story has been adapted several times, from ballets, to musicals, to the the 1989 hit DisneyAnimatedCanon film, ''Disney/TheLittleMermaid''. The Disney version changed the ending to a HappilyEverAfter one, and several [[LostInImitation subsequent adaptations]] have followed suit.

It can be read online [[http://www.bygosh.com/hca/mermaid.htm here]].
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!!Provides Examples Of
* AnAesop: The latest ending makes the good deeds time adjust depending on whether children are being good or bad, with more time off for good behavior than time added for bad behavior.
* AgonyOfTheFeet: The Little Mermaid always feels like she is walking on blades, while she is human.
* AndIMustScream: You have sold your tongue and you feel like walking on blades everytime you set a foot on ground without being able to complaining about the pain. ''And the mermaid was said to be a gifted dancer. ''
* AuthorAvatar: The story was written around the time a man Andersen loved romantically was getting married. There are claims that at the time, [[TearJerker Andersen was writing desperate letters that he didn't dare send, saying "I want to tell my love, but I cannot speak."]] Sound familiar?
* BecomeARealBoy: Mermaids live for five hundred years and then dissolve into sea foam, having no afterlife of any kind. The protagonist's ongoing wish, even prior to her falling in love with the prince, is to become a human and acquire an immortal soul though in many adaptations this is completely ignored in favor of emphasizing the love story.
* BittersweetEnding: The Little Mermaid can gain an immortal soul after doing about 300 years of good deeds.
* CuteMute: The mermaid as a human.
* DarkIsNotEvil: Unlike the villainous Ursula from the Disney movie, the sea witch in the original tale was TrueNeutral. She had no ulterior motivations, her demand of the price was simply payment, and she gladly helped the mermaid's sisters in saving her, in addition to warning the mermaid of the deal's consequences.
* DownerEnding: The mermaid is given a choice to kill the prince and return home or not and turn to sea foam. She chooses the latter.
* EveryoneHasStandards: The Little Mermaid's sisters trade their hair for a knife that The Little Mermaid can use to kill the prince and use his blood to return herself to mermaid form. She cannot bring herself to do this (although it does help get her the chance to earn an immortal soul).
* EverythingsBetterWithPrincesses: The Little Mermaid, her sisters, and the girl who helped the prince after the Little Mermaid saves him.
* IdiotBall: One wonders why the hell the mermaid didn't learn to write.
* {{Irony}}: The Little Mermaid saved the prince, but left before he could see her. He actually fell in love with a girl at a nearby temple who helped him, who later turned out to be a princess from a neighboring kingdom.
* LastSecondChance: If she wants her life spared, the mermaid has to kill the prince, or she will turn into foam.
* LikeBrotherAndSister: The prince's feelings towards the mermaid.
* LoveAtFirstSight: The mermaid towards the prince. [[AllLoveIsUnrequited The prince towards another girl.]]
* LoveRedeems: The reason why the mermaid chose to die rather than kill the prince.
* NamelessNarrative: Almost no one is referred to by name, just their titles.
* NoAntagonist: The tale is a tragedy, but doesn't have a real villain.
* OurMermaidsAreDifferent: They can go to the surface when they are old enough, and lack immortal souls.
* OurSoulsAreDifferent: Mermaids lack one, humans have one, and daughters of the air can gain one.
* PerfectlyArrangedMarriage: Although the Little Mermaid accidentally helps that along, the prince and the girl from the temple fall in love when it turns out she's a princess from a neighboring kingdom.
* RapunzelHair: Of course.
* RealitySubtext: See AuthorAvatar.
* RescueRomance: Although with tragic consequences.
* TheSoulless: Mermaids have no soul.
* TongueTrauma: The Little Mermaid trades her tongue as part of the deal.
* UnrequitedTragicMaiden: The titular mermaid, who ultimately chooses the prince's happiness over her own life and turns into sea foam. In some versions, she is rewarded for her sacrifice with becoming an air sprite.
* UpdatedRerelease: Twice.
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