[[quoteright:299:https://static.tvtropes.org/pmwiki/pub/images/witchesdahl_4650.jpg]]
[[caption-width-right:299:This is why you don't want to get on the Grand High Witch's bad side.]]

Both Dahl's adult and children's stories have earned a reputation for being very sadistic and often bone chilling creepy and disturbing. This earned him the title "Master of the Macabre" and also a separate article here, on his personal NightmareFuel page.

His most famous work, ''Literature/CharlieAndTheChocolateFactory'', warrants [[NightmareFuel/CharlieAndTheChocolateFactory its own page]], and [[Literature/CharlieAndTheGreatGlassElevator its sequel]] has [[NightmareFuel/CharlieAndTheGreatGlassElevator one as well]].
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'''Adult stories:'''
* The darkly humourous "Literature/LambToTheSlaughter", about a housewife who casually kills her husband with a frozen leg of lamb. And ''how'' does she dispose of the murder weapon? She ''[[EatTheEvidence feeds it to the police...]]''
* "Literature/TheLandlady" takes place in Bath at a bed and breakfast with an unusually friendly landlady. Later Bill, one of the guests, recognizes the names of two others; we find out that they checked in 2 years ago but never came out. She also has realistic stuffed animals... because they're her old pets. She freely admits to [[TheCollector stuffing them herself]]. Upon which Bill notices that the tea she gave him had a smell and taste of BitterAlmonds. Then she asks if he signed his name to the guestbook, so she can remember it...
* ''[[http://www.classicshorts.com/stories/south.html Man From the South]]''. The protagonist, vacationing in Jamaica, meets an elderly South American man named Carlos. Not long after, a young American cadet sits down next to them, offers them some cigarettes, and begins boasting about his lighter, which never fails to light. Carlos is intrigued, and offers the cadet a bet: if he can light his lighter ten times in a row, Carlos will give him his Cadillac. If he loses... Carlos gets to cut off his left little finger. The cadet is unnerved, but agrees to the bet, and the narrator agrees to serve as a referee. The cadet gets up to eight strikes before Carlos's wife bursts into the room and forces Carlos to call the bet off. She reveals that they've been forced to flee their home country due to Carlos's love for this game- he's taken ''47 fingers'' and lost 11 cars- and he doesn't even have anything left to bet ''with'', because his wife won it all. And when she takes the Cadillac's key from the narrator, he sees that [[{{Fingore}} she only has one finger and thumb left on her hand.]] Not so much Nightmare Fuel as a distressing insight on how easily people will submit themselves to bodily mutilation if the reward is good enough.
** They made a TV episode out of this for the original ''Alfred Hitchcock Presents'', directed by the master himself. The guy making the bet? ''Peter Lorre.'' There is also a version from the 1985 revival of the series, with John Huston in Lorre's role.
*** And of course, it formed the basis of Creator/QuentinTarantino's segment of Film/FourRooms.
** On the topic of ''Alfred Hitchcock Presents'', the 1960 version added [[FridgeHorror one additional twist]] in the closing minutes: After the bet is aborted, and Carlos' wife is chewing him out for doing this kind of bet again, [[Creator/SteveMcQueenActor Steve McQueen]]'s character goes to light the cigarette of the woman that had accompanied him. [[WhamShot The lighter fails to light.]][[note]]This is repeated in the 1985 version, but the impact is lessened here as [[AdaptationDeviation here, the gambler manages to light the lighter ten times (albeit a gust of wind blows out the flame) before the bet is aborted]], but the implication remains. As if to make up for that, the amount of fingers remaining Carlos' wife's hand is changed from two [[DarkerAndEdgier to one]].[[/note]]
* "Royal Jelly." A story about a man with a natural affinity for bees who decides to give his sick baby royal jelly to cure her. Except it works too well, and the baby begins to look more like a puffy larva. And the man had been taking royal jelly for months before hand, and is beginning to look more and more like a bee...
* "Pig": A rural guy who's been living on a vegetarian farm all his life with his chef aunt, goes to NYC and into a restaurant where the chef serves him the special, pork and cabbage... The chef invites him to a factory tour where he ends up on the conveyor belt and has his throat slit. See the title picture of CharlieAndTheChocolateParody.
* "Skin". An old man named Drioli has an incredible tattoo on his back, and shows it off to the patrons of an art gallery. Several men start making him offers: one says he'll pay for a skin grafting operation to have the artwork removed (which other patrons point out he probably won't survive), and another asks him to take a job at the Bristol Hotel in Cannes, which he owns, where Drioli will serve as a sort of model, living a life of luxury while showing off his tattoo to the guests. Drioli takes this second offer... and then we find out that there's no Bristol Hotel in Cannes, and a heavily varnished painting matching the description of Drioli's tattoo has shown up at an auction in Buenos Aires.
* ''Literature/SometimeNeverAFableForSupermen'' features some chilling depictions of nuclear war, but the most disturbing part is the ending. Humanity has destroyed itself, all land-dwelling animals are dead, and the only living things are worms... and gremlins, who've been hiding underground, waiting for humanity to wipe itself out so they can emerge and rule the world. Unfortunately, they were created from human imagination, and with no humans left to imagine them, they can't exist, so [[PuffOfLogic the gremlins all disappear]], leaving nothing but worms alive on a ruined planet.
* "The Sound Machine": Klausner, a scientist obsessed with hearing sounds too quiet to be heard by human ears, develops a machine capable of picking up and amplifying these sounds. He then finds out that plants make horrific shrieking noises when picked or cut, but when he gets a doctor to test his machine, the doctor can't hear anything. The machine is eventually destroyed when a tree's limb falls and crushes it (Klausner claims the tree did it on purpose, because he was chopping at it so the doctor could hear its moans of pain). It's not clear if [[MaybeMagicMaybeMundane the plants were really screaming or Klausner was just insane]], but if he ''was'' sane... [[CassandraTruth being able to hear things that no-one else can hear]] and being labelled as a madman by society is a pretty scary concept.
* "Beware of the Dog": A short story told from the perspective of a downed British fighter pilot who crashes his plane after losing his right leg in a dogfight, and wakes up in hospital in Brighton. Piecing together clues that something's off and quickly reaching a chilling conclusion, he realizes he's in Occupied France the whole time when he sees a sign in French saying the titular phrase. The hospital staff surrounding him are Germans pretending to be British, and with only one leg, he's trapped. It's implied there's a guard dog outside to prevent him from escaping, hence the sign.
* "Genesis and Catastrophe: A True Story" is only horrific in the aspect that [[ForegoneConclusion the reader ultimately realizes]] [[DownerEnding how this story will end]]. A couple who already lost several children before are about to have birth again. Her mother worries about the fate of their new child and notices he's very frail. The story ends with Klara praying, "He must live, Alois. He must, he must... Oh God, be merciful unto him now..." In any other story, this would be a hopeful ending. However, just a few lines prior, the doctor addressed Alois with [[WhamLine "Herr Hitler"]]. So, in case you missed that: This story concerns a couple by the names of Alois and Klara Hitler, having suffered a string of dead children in the past, giving birth to their newborn son... which they are going to call ''"[[UsefulNotes/AdolfHitler Adolf]]"''...
* A real mindfuck is "William and Mary", about a man who dies, but in his will he explains to his wife that he took part in a scientific experiment in which his brain is being transplanted from his body after death, and attached to an artificial heart. The brain would be bathing in a Ringer's solution. One of his eyes could also be hooked up so that he would be able to see. Although the doctor is uncertain whether the brain would regain consciousness, he remains hopeful. The brain, he says, could probably live as long as 200 years connected to the machine. If that isn't horrible enough Mary turns out to hate her husband and enjoys having her revenge on him by taking him home and do everything he always prohibited her from doing, while he just lies there in this helpless state.
* The ending of "Rummins", one of the stories in the "Claud's Dog" series, narrated by a petrol station attendant. The farmer, Mr Rummins, has called out a rat catcher (as detailed in the previous story, "The Rat Catcher") as he has a problem with rats in his hay. Bert, his son, is having difficulty cutting out a piece of the hay rick, as there appears to be a hard object in there and he has to saw through it. The narrator reminisces about Ole Jimmy, a local drunk who liked to help with the hay cutting, and wonders where he is, as Ole Jimmy has been drinking and has left five empty bottles and his bag behind. Bert pulls the hay out of the rick, and starts screaming. Why was there a rat problem? Because Ole Jimmy's corpse was in the hay and the rats were eating it. And all this time, Bert has been sawing through ''a dead body.''
** The Rat Catcher himself is NightmareFuel embodied. Not only does he heavily resemble a rat himself, but he kills rats ''with his teeth''.
* "Georgie Porgie" is a near-constant stream of NightmareFuel. Examples include George's vivid descriptions of a childhood incident where he witnessed one of his pet rabbits give birth and then almost immediately devour the baby (which leaves him with [[SexIsEvilAndIAmHorny a crippling fear of being both figuratively and literally devoured by women]] which drives the story); George being relentlessly pursued by women who refuse to take no for an answer; one woman serving George a drink that's [[ButLiquorIsQuicker heavily implied to have been spiked with some pretty strong alcohol]]; the descriptions of George's visions of said woman swallowing him whole when she kisses him; and the implied reality of the ending where it seems George attacked the woman, mutilated her mouth in some way, and was sectioned...but is clearly completely happy to continue living in his delusion of being ''trapped inside the woman's stomach'' because he feels "safe" there. Animal lovers will likely also find George's "experiment" with a group of rats ([[BadPeopleAbuseAnimals involving electric wire]]) to be quite disturbing.

'''Children's work'''
* ''Literature/TheWitches'', easily Dahl's most frightening children's book, has [[NightmareFuel/TheWitches its own page]].
* ''The Wonderful Story of Henry Sugar and Six More'' includes "The Swan", in which a little boy Peter is bullied by two larger boys with guns. One of their first acts is to tie him to a train track, thinking that'll kill him. The boy survives, but the story details his feelings and fears as the train ''rushes over him''. The last act of bullying includes cutting the wings off a dead swan (whom the ruffians had shot, to Peter's chagrin) strapping them to the boy's arms, making him climb a tree, telling him to "fly," and then shooting him in the leg when he refuses to jump off. This is to taunt Peter who was upset when the bullies shot the swan, so one of the bullies jeers "that I'm a magic man, I'll have that swan flying through the air again".
** It's not so scary when you realize that he ''does'' fly away. The final paragraphs of the story have him crashing sobbing and bloody through the door of his family house, where his mum promptly calls the authorities...before cutting the severed wings from the harnesses on his son's arms.
** Some parents tried to ban this story, because it contained alarming similarities to the real-life case of the toddler James Bulger, who was abducted by two ten-year old boys, who tortured him to death, and left him on a railway line.
** Not to mention the title story itself, in which the idle, wealthy, selfish Henry learns about, and subsequently trains himself to have, the ability to "see without eyes" -- specifically so he can see through the backs of cards and clean up at casinos. Dahl viciously describes a sequence in which Henry, feeling "a strange pain in his chest", applies the ability to his image in a mirror and sees a blood clot slowly making its inexorable way to his heart, unstoppable and deadly...Then he reveals that it was only a ''potential'' scenario that didn't actually happen (the story uses a DirectLineToTheAuthor setup), but would have been appropriate since it would have directly referenced the heavy implication that Henry's predecessor suffered a KarmicDeath as a direct result of using his powers for personal gain -- more NightmareFuel! In fact, what "actually" happens is that Henry's greed ''lessens'' in the wake of the training. He subsequently becomes a sort of Robin Hood, cheating casinos all over the world under a variety of disguises and aliases to fund a chain of orphanages -- the "Wonderful" part of the story.
** What makes this all the better was that, in the UK at least, ''The Wonderful Story Of Henry Sugar'' collection was calmly pitched as a short-story collection for children. Older children, admittedly, but still. (In America, it can be found in elementary school libraries.)
* ''Literature/TheBFG'' has [[NightmareFuel/TheBFG its own page]].
* The Trunchbull from ''Literature/{{Matilda}}'' - a massive, super-strong, ''psychotic'' woman with a horrifically violent temper and an incredible hatred for children, who just so happens to be headmistress of a primary school. Her punishments only add fuel to the fire - lobbing children out of windows, slinging them around by their hair, force feeding them cake, and, worst of all, locking them in a tiny cupboard in her office called the Chokey, which has ''broken glass and nails'' sticking out of the walls. The absolute worst part about her though? The children have tried to tell their parents about her before, but what she does is [[RefugeInAudacity so outrageous]] that their [[AdultsAreUseless parents don't believe them!]] If they do believe their children, they don't complain because they are just as afraid of Miss Trunchbull as the kids are. This makes her even more threatening, when she can even scare the parents.
* Literature/RevoltingRhymes:
** Goldilocks being eaten by the bears.
** Cinderella's would-be prince turning out to be a psychopath, chopping off people's heads.
* ''Literature/DirtyBeasts'':
** Crocky-wock the Crocodile who sneaks inside a father and son's house. They hear him downstairs, but are unable to do something in time. So the creature crawls upstairs, enters the room and presumably eats them.
** The Ant Eater devouring both the spoiled boy and his aunt. Even though they deserved it...
** The tummy monster. Especially since you have no idea ''how'' [[NoodleIncident this creature got inside the fat boy's tummy]] and [[NothingIsScarier exactly how it looks]].
** The original illustrations by Rosemary Fawcett were pretty frightening as well.
* ''Charlie and the Great Glass Elevator'':
** The Vermicious Knids on "Space Hotel USA" who casually, yet threateningly, tell Wonka and company to "SCRAM"
* ''Literature/TheTwits'':
** The part where Mrs Twit gives Mr Twit a nice lunch, consisting of [[NauseaFuel wormy spaghetti!]]
** The ending, where Mr. and Mrs. Twit are glued to the ground while standing upside down on their heads. Their fate is disturbing enough, but Dahl adds that due to the pressure of their bodies pushing on their heads they are actually pressed together! Their heads disappear inside their bodies and their bodies inside their legs until nothing more is left than their clothes. [[AssholeVictim It couldn't have happened to nicer people]], but that is ''not'' a nice way to go.
* Dahl's descriptions of some of the misadventures he actually suffered as a child in the memoir ''Boy'', including almost losing his nose in a car accident and having his adenoids removed without anethstetic, are enough to make your skin crawl. The description of the horrid old woman who ran the local sweet shop, digging her filth-encrusted fingernails into a jar of toffee, is also the stuff of nightmares.
--> The mere sight of her digging her filthy fingers into a jar of sweets would have caused a starving tramp to go running from the shop.
* Some memories described in his second autobiography ''Going Solo'' are similarly disturbing: watching the "snake man" capture a deadly green mamba which had entered a house, being made to confront armed and angry German civilians the day war was declared (and seeing their leader shot dead), crash-landing a fighter plane in the desert, and escaping from the burning wreck, having been literally (but not permanently) blinded by the crash.
* ''Literature/GeorgesMarvellousMedicine'' is in many ways more lighthearted than many of his others, but the effects of the medicine are described in a detail that gets rather gruesome. However, one scene that is even more scary precisely ''because'' it's so mundane is the part where the grandmother scares George by talking about NauseaFuel things she's eaten and makes him think she might be an actual witch. There is every indication that she's lying about any magic powers she might have or the vile insects she has eaten... meaning that she's simply a cruel old bitch deliberately terrorising her grandson while his parents are out, in such a way that even if he told them about it she could all too easily use the JustJokingJustification or downplay it. This scene taps into both the childhood fear of being helpless in the face of cruelty without the support of your parents (a main reason for why [[{{Literature/Matilda}} Miss Trunchbull]] is so scary) with the addition of it happening '''[[DomesticAbuse in your own home]]''', and the fear of knowing that your own child could go through something similar, and that you yourself might not treat it seriously because it would inevitably get softened in the retelling.
* ''Literature/TheEnormousCrocodile'': The fact that the Enormous Crocodile fully planned on eating children. Think about that. Fortunately, [[TooDumbToLive he screwed up his plan from the get-go by telling four other animals of what he intended to do, resulting in them stopping him and ultimately killing him.]]
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