* The ''Literature/{{Gone}}'' books. Each book seems to get progressively darker, except for ''Lies'', which was about on the same level as ''Hunger''. Not that it started out on a light note, though. ''Fear'' is this on a very literal level.
* ''The California Diaries'' series, compared to ''Literature/TheBabySittersClub''. However, the use of this trope surprisingly didn't come off as cheesy or overdone. It allowed for more character development and exploration of realistic adolescent themes, like depression, drifting away from childhood friends, and (arguably) closeted homosexuality.
* ''TheBerenstainBears'' books normally come in the form of small short books that deal with small family issues like being afraid of the dark at night and way too much junk food. But they also had mini-chapter books that dealt with slightly darker themes like shoplifting, friendships going sour, political controversy, and the destruction of natural habitats.
* Diana Gabaldon's ''Lord John Grey'' series, historical mysteries concerning a secondary character from her main set of historicals, come across as an attempt to be both DarkerAndEdgier and HotterAndSexier, using the seedy aspects of the protagonist's forbidden love affairs, him being gay and the setting being the 18th century, for all the shock they're worth. They may or may not have managed it. (Her main books are themselves essentially Darker and Edgier versions of the 'roguish Scots in kilts' type of historical romance, though significantly better written- there's still smoldering glances, kilts, time travels and duels, but the male love interest's the one who suffers all the traumatic [[RapeAsDrama villain-initiated rape scenes]] and Gabaldon doesn't hold back on the gore or inequality much.)
* ''Literature/TheHeroesOfOlympus'' series, continuing the trend from the original series.
* ''Literature/{{Wicked}}'' and ''Literature/TheWonderfulWizardOfOz''. ''The Wonderful Wizard of Oz'' is a fluffy, heartwarming story of a few friends in a magical country. ''Wicked'', the novel, doesn't go more than a few pages without some swear word or mention of sex, or just sex. Gregory Maguire had a pretty dirty mind... there is a lot of weird romance in it, like Elphaba's father and mother were both in love with the same man, Elphaba's roommate was in love with her (but married a older rich guy, who all Gelphie shippers insist is an abusive ass), Elphaba's guy friend and his friend may have had a hint of romance... it never ends.
** And yet this isn't the [[FracturedFairyTale actual thrust of the plot]]. [[spoiler: The Wizard is a tyrant, using a secret police and assassination to suppress dissension and many ethnic groups. Conscious, sapient Animals are sent to farms and stripped of their rights, resulting in many Animals going into hiding. Elphaba herself is willing to commit murder to help her cause, and works for what can only be called a terrorist group at one point. Her mentor, Doctor Dillamond, is brutally murdered for coming close to proving the minor point that Animals (the sapient kind) and animals (the normal kind) and humans are made from the same stuff. Religious tensions between Tick-tokism (straw-man science), Lurline (straw man paganism), and the Unionists worshiping the Unnamed God tears apart society. The Wizard's projects come at severe cost in life, such as the destruction of the Quadlings' country for ruby mines. Racism between humans - especially towards Winkies and Quadlings, is common (though Munchkinlanders of means always "marry into height)." The land is caught in a terrible drought. The Yellow Brick Road and Emerald City are both wasteful boondoggles. Witch sex is hardly the 'darker and edgier' in Wicked.]]
** And the original ''Wizard Of Oz'' book isn't as "fluffy and heartwarming" as many might think from seeing the 1939 musical film. In the book, for instance, the Tin Woodsman is made of tin because when he was a normal human, the witch enchanted his axe to repeatedly cut off various parts of his body which he kept replacing with tin. Also, the witch enslaves Dorothy and her friends at one point.
** Another Gregory Maguire novel, ''Mirror Mirror'', about Literature/SnowWhite has lots of kink. (Menstruation ''does not work that way!'')
** NeilGaiman gave Snow White a similar treatment in his short story "Snow, Glass, Apples."
* The ''Literature/HarryPotter'' books tended to get Darker And Edgier as they went along. Which was no accident. Rowling set out to write a series that would grow up with its audience, and it was published over a decade -- so the same 10-year-olds expected to read ''Philosopher's Stone'' were expected to be about 20 when they read ''Deathly Hallows'', and ready for more mature fare. Naturally, this was entirely lost on most Concerned Parents, leading to oodles of FanDumb and WhatDoYouMeanItsForKids. This started with a noticeable difference between ''[[Literature/HarryPotterAndTheGobletOfFire The Goblet of Fire]]'' and ''[[Literature/HarryPotterAndThePrisonerOfAzkaban The Prisoner of Azkaban]]''.
** [[http://s3.amazonaws.com/kym-assets/photos/images/original/000/156/899/OaA6X.jpg?1318992465 Quite literally too.]]
* Many of the poems in ''Literature/SongsOfExperience'' are darker counterparts to poems in ''Literature/SongsOfInnocence'', for example "THE Chimney Sweeper" to "The Chimney Sweeper", "Infant Sorrow" to "Infant Joy", and both "The Human Abstract" and the cut poem "A DIVINE IMAGE" to "The Divine Image".
* After the success of her second novel ''Literature/{{Pride and Prejudice}}'', Creator/JaneAusten wrote to her sister Cassandra that she felt it was "too light, and bright, and sparkling" and planned to write something different next time. The result was her most realistic and controversial novel, ''Literature/MansfieldPark''.
* ''WickedLovely'' was, on its own, dark, due to being an UrbanFantasy novel about TheFairFolk. Ink Exchange was [[RapeAsBackstory much]], [[InterplayOfSexAndViolence much]], ''[[DrugsAreBad much]]'' more so. Then came fragile eternity, the [[LighterAndSofter Lightest and Softest]] of the series. Then came Radiant Shadows, which was similar in tone to Ink Exchange, with the additions of [[spoiler:Tish]] being KilledOffForReal, and [[spoiler:Irial]] being wounded to the extent that he'll die within a fortnight. So, it's DarkerAndEdgier And Deader.
* ''Literature/TheLordOfTheRings''. It was a DarkerAndEdgier sequel to ''Literature/TheHobbit'' due to a mixture of CerebusSyndrome, TheMoorcockEffect of retconning the Shire into ''Literature/TheSilmarillion'' setting, and Tolkien's increasing dissatisfaction with fantasy being marketed to children.
* Many of the original [[Creator/TheBrothersGrimm Brothers Grimm]] fairytales were this before {{Disneyfication}}.
** They were even Darker before the Grimm brothers got a hold of them too.
* ''Literature/TheDresdenFiles'', while never sparkles, rainbows, and kittens, is getting darker. [[spoiler: Genocide]] being the most recent inclusion...
** And that's the ''protagonist's'' doing. The villains have gotten considerably larger-scale as well, but the constant character development justifies all of this. The turning point seems to be post-''Grave Peril'' (book three), then changes again post-''Dead Beat'' (book 7). The series, already far from fluffy saccharine, got a fair bit darker with ''Ghost Story'' (book thirteen). Murphy's withdrawn and hostile, Molly is a few fries short of a happy meal, and the Fomor are a lot like the [[OurVampiresAreDifferent Red Court]] without the love and sense of fair play. In ''Literature/ColdDays'' the tone lightened slightly from the previous novel, although it is still very dark and edgy.
** At one point, Harry implicitly uses this trope when he needs to get himself past a truly horrifying thing he saw with his Sight. He reminds himself of all the darker and edgier (and painfully beautiful) things he's seen, and eventually can deal with this as just the next in a long line of darker and edgier increments. For those who haven't read the books, anything seen with a Wizard's Sight is unforgettable - they can never see it with any less clarity for the rest of their very long lives.
** Sometimes, oddly enough, ''justified in universe''. Harry's behavior for a few books was due to [[spoiler: him being possessed by a Fallen Angel]]. Molly's demeanor in Ghost Stories is actually in some part an act that she's using [[spoiler: to try and be as scary to bad guys as Harry was]].
** Harry occasionally mentions this, either to the readers or to Ebenezer [=McCoy=]. It's part of how he reasons out that the Black Council has to exist.
* Creator/JimButcher's other series ''Literature/CodexAlera'' does this as the series progresses. In the first novel, we have Tavi undergoing a personal challenge. By the end, there is a empire-wide war going on against [[spoiler:the Vord]] where the very existence of the empire is threatened.
* Weirdly enough, the Cambridge Latin Course textbooks. The first book were mostly just fairly light-hearted stories about Caecilius and his family, all of whom come across as genuinely nice people... until the last chapter, when Vesuvius erupts, [[{{Tear Jerker}} killing almost the entire cast (even the dog!)]] The next book moves to Roman Britain, where a new main character, Salvius, is introduced. In his very first story, he [[KickTheDog executes one of his slaves for the heinous crime of being too sick to work]], and things mostly go downhill from there. The final book ends with Salvius being taken to court for fraud and attempting to commit suicide to keep his honour intact.
** Caecilius was a real person, and he ''did'' probably die in either the eruption of Vesuvius or an earlier earthquake. They had to stay true to history if they wanted to use someone who had actually lived...
* The ''Literature/StarShardsChronicles'' trilogy starts out with some fairly dark horror themes, but stays PG-13. The final book, however, turns up the sex-and-profanity dial quite a bit.
* A series of original novels based upon the ''Franchise/TombRaider'' games was published in the mid-2000s. While the games themselves had become darker and edgier over time, the novels fully recast Lara as a killer more than an explorer and archeologist. One novel, ''The Man of Bronze'', is particularly violent, with Lara describing in first person how she mercilessly kills a group of thugs (in the process recalling how she once killed a man [[KissOfDeath while kissing him]]). Later, she attempts to kill a man in cold blood for apparently no other reason than he was painting a sexy portrait of her (she is unsuccessful).
* Literature/{{Stuck}} starts off fair enough, though in its final episode the themes get darker and there's a bit more violence and black humor. Not surprising, considering that [[spoiler: the main characters become fugitives.]]
* The Cinderella adaptation ''Sunny Ella'' casts Cinderella as a deluded murderer and Rapunzel as a soulless half-vampire.
* ''The Literature/NancyDrew Files'' and ''Literature/TheHardyBoys Casefiles'' spin-offs weren't really an attempt to go Darker and Edgier, but a switch to a new publisher removed most of their previous roadblocks, namely NeverSayDie, NoHuggingNoKissing, and the like (however, they were an attempt to skew ''older,'' hoping that maybe young readers might graduate up to them after aging out of the original series intended demographic.) In doing so, they also got better written as a side effect, and fans of both series consider them some of the better books in their respective franchises.
* ''Darke'' of the ''Literature/SeptimusHeap'' series is noticeably darker than the preceding books, what with the existence of the Castle being on play and lots of people dying in the end.
* Being a Warhammer40k series, GauntsGhosts was never sunshine and rainbows, but starting with ''The Guns of Tanith'' things got noticeably more brutal and grim, with beloved characters dying off, the battles getting even more desperate. Compare series starter ''First & Only'' with book 8, ''Traitor General'', and you could almost be forgiven for thinking you were reading two entirely different series.
* ''Literature/TheLorax'' is this compared to the other Dr. Seuss books. It teaches about the consequences of not acknowledging natural resources until they are gone.
** Even more so, ''The Butter Battle Book'' is a parable about the nuclear arms race between the US and the USSR, represented by two tribes living on opposite sides of a wall analogous to the Berlin Wall, concluding with a BolivianArmyEnding as the two sides are about to drop their bombs.
* ''Cahills vs. Vespers'', the second series of ''The39Clues'', takes some noticeable liberties with language, violence, and romantic relationships as compared to its preceding series.
* A number of later takes on the Franchise/CthulhuMythos suffer from this. Granted, [[Creator/HPLovecraft Lovecraft]]'s original work is already not exactly kid-friendly...but it's certainly also not relentless doom and gloom about the imminent {{end of the world as we know it}}, and the number of characters who actually die or {{go mad from the revelation}} in his works (an aspect that's sometimes played up to the point of {{Flanderization}}) can be considered almost ''conservative'' by horror standards.
* With its relentlessly dark tone, heavily implied sex, constant violence, and creatures, [[Literature/{{Reckless}} The Mirrorworld Series]] is not your average children's novel.
* ''Literature/ThePowerOfFive'' was pretty dark from the very start, but ''Oblivion'' is notably even [[UpToEleven moreso]].
* In the ''Literature/RainbowMagic'' series, the movie is this when compared to the books. It calls Kirsty and Rachel's friendship into question, has a gang of bullies pick on the girls, and has Jack Frost aiming to conquer the world. It also has Jack Frost acting much nastier than in the books, to the point of firing his loyal goblins and considering his army of snowmen to be weak and easily replaced.
** Lucy the Diamond Fairy's book was a bit darker than others, as it dealt with the fairies' flying magic fading, causing them to lose their wings. It also had Jack Frost trying to impale the girls with icicles at one point.
** Juliet the Valentine Fairy's book is more serious than others, as Rachel and Kirsty are compelled to argue for almost all of it, and it shows the consequences when items that make everyone loving are stolen.
** Autumn the Falling Leaves Fairy's book has the girls experiencing a heat wave thanks to Jack Frost. All of the animals and plants are thirsty, leaves and food won't grow, and the finale of the book has the Ice Castle in danger of completely melting and flooding all of Fairyland.
* The ''Literature/ProvostsDog'' trilogy of Creator/TamoraPierce's Literature/TortallUniverse has a less clear-cut morality than the previous series, with the good guys forced to [[TheNeedsOfTheMany pick and choose]] which injustice to fight because they don't always have the resources. The poverty-ridden neighborhoods Beka walks her beat in are full of everyday cruelty, evictions and murder and brawls, with its residents somewhat ConditionedToAcceptHorror. The cops employ actual torturers, slavery is legal, and there's no InfantImmortality. It's mentioned that at least five Dogs (cops) a year commit suicide because the place grinds their soul down so much.
* ''[[Literature/RobJHayesTheTiesThatBind The Ties That Bind]]'' by Rob J. Hayes describes ''itself'' as a GrimDark SwordAndSorcery novel. Played with as it's fairly squarely in the genre, albeit very-very cynical.
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