History TrappedInAnotherWorld / Literature

* In ''Daughter of the Falcon'', Jessie, a girl from our world is trapped in Mysteria, a MagicalLand. This is then {{Deconstructed}} as [[spoiler:she needs insulin injections and there is nothing comparable in Mysteria, so unless she can return home, she will die when her supply runs out.]]

* The main premise of the ''Across The Universe'' series. The main character is traveling in a spaceship to land on a new planet while cryogenically frozen, and she is woken up fifty years before the ship is set to land. She is trapped on a tiny ship filled with people who don't understand her and are extremely confused at how she looks (since everyone on the ship is monoethnic, and she's not).

* OlderThanRadio: Lewis Carroll's ''Literature/AlicesAdventuresInWonderland'', one of the earliest and most famous versions of this trope and a template for many later stories. Alice follows a rabbit DownTheRabbitHole and finds herself in a world of nonsense. The sequel, ''Through the Looking Glass'', has Alice enter a different world through a MagicMirror in her room.

* Played with in ''Literature/TheBalancedSword'', in which a group of teenagers are brought from Earth to the magical world of Zarathan by a mysterious wizard and tasked with restoring the long-lost connection between the two worlds -- but they're not the protagonists, or even in the story much; they just cross paths occasionally with the actual protagonists, Kyri and Tobimar, who are natives of Zarathan busy with a quest of their own. [[spoiler:They do play a role in the resolution of the trilogy, though: during Kyri's climactic battle with the BigBad, there's a mystical aftershock portending that somewhere offstage the connection between the two worlds has been restored, and the distraction this causes the BigBad helps Kyri to win the day.]] The author has said that he does intend to do a straight telling of the teenagers' story someday, but if he only got to tell one story about Zarathan he wanted it to be Kyri's.

* In Creator/DianaWynneJones's ''Literature/CharmedLife'' this is what happens to Janet and her eight analogues in the other worlds in Series Twelve -- when Gwendolen escapes from World 12A, she pulls Janet in from World 12B, and so on all around the circuit. [[spoiler:Janet is the only one who doesn't find the change to be an improvement, and when she realizes this, decides to stay in 12A for the sake of the others.]] Janet's parents [[AdultsAreUseless don't notice the change]].

* ''Literature/{{Coraline}}'' by Creator/NeilGaiman is arguably {{Deconstruction}} of this concept, as [[spoiler:the other world [[ExactlyWhatItSaysOnTheTin literally is a Trap for her]] (and others) -- and nothing more. Unlike most examples, the heroine is '''very''' glad to leave it behind.]]

* In the first ''Literature/CrosstimeTraffic'' book, ''Gunpowder Empire'', siblings Jeremy and Amanda Solters get cut off from the home timeline after a terrorist attack in Romania (they don't find out until the end of the book), and trapped in a world where the Roman Empire never fell. They switch from accepting barter for their goods to only taking cash, and worry what will happen when the trade goods, and especially the antibiotics, run out.

* In ''Literature/{{Destroyermen}}'', the crew of the UsefulNotes/WorldWarII destroyer USS ''Walker'' ends up on a parallel Earth where evolution took a very different path. Dinosaurs and their descendants roam the land, and the seas are full of giant monsters and piranha-like fish. Two native intelligent races are at war to the death. Later on, they learn they're far from the first to be trapped here. In fact, the ''Literature/{{Artillerymen}}'' prequel series follows another group of Americans who got trapped in that world during the Mexican-American War.

* The main characters in ''Literature/EdenGreen'' and sequel ''Literature/NewNight'' spend at least part of their adventures stuck in an alternate dimension later named Fortuna, from which alien needle monsters have been invading Earth. The portals that allow travel between the dimensions are fickle, impossible to control until late into the second book, and even then, behave in unpredictable ways.

* In ''Literature/{{Everworld}},'' the main characters [[HeroicWannabe David]], [[PoliticallyIncorrectHero Christopher]], [[TheSmartGuy Jalil]] and [[TheHeart April]] get sucked into the titular world when [[GodOfEvil Loki]] breaches the space between worlds to abduct [[TokenEvilTeammate Senna]]. ([[MagnificentBitch Senna specifically planned this]].) Everworld is populated with various mythological gods who came there from our world ("the Old World") centuries ago, along with their mortal followers. There are also weird alien creatures who came from completely different worlds, along with ''their'' gods, one of whom is an EldritchAbomination seeking to eat all the others. Senna could bring them home, but unlike most {{MacGuffin Super Person}}s, she has her own agenda, [[AGodAmI and it's not pretty]].

* Creator/DaveDuncan's ''The Great Game'' explains why characters in this situation tend to become heroes -- anyone who's in a different dimension than the one they were born in can absorb {{Mana}}. At low levels, this just makes them [[CharmPerson really, really charismatic]]. If they [[spoiler:convince other people to make sacrifices to them (usually of blood), they can become {{Physical God}}s. All "godly" beings are actually humans from other worlds, many "gods" of Vales are actually from our world.]] [[PoweredByAForsakenChild There]] [[AGodAmI are]] [[DrunkOnTheDarkSide hazards]] [[TheDarkSideWillMakeYouForget to this]], however...

* In ''Literature/HighSchoolProdigiesHaveItEasyEvenInAnotherWorld'', seven high school students get into an airplane accident, and wake up to find themselves in a middle age-esque fantasy world where magic and beast-men (called juujin) exist. Like most protagonists in this kind of plot, they are high school students that excel at politics, economics, science and medicine, which enables them to build a nuclear plant in a world without electricity, control the economy of a large city in a short work's trip, and declare war on the evil nobles.
* ''Literature/HisDarkMaterials'' has Stanisslaus Grumman, actually John Parry, became trapped in Lyra's world while exploring the Arctic in his world and couldn't find the portal again. Somewhat deconstructed as it was stated that staying in a universe that was not yours would cause you to age quicker and die sooner.
* In ''Literature/HowNotToSummonADemonLord'', involves a shut-in {{NEET}} who is a GodlikeGamer in an RPG he plays, where he suddenly awakens in the world resembling his game and has become his overpowered player avatar Diablo the Demon Lord.

* ''Literature/TheDivide'': Within the first five pages, Felix passes out above the eponymous Divide and finds himself stuck in a world where humans and science are mythical but magic and elves are real. Unusually, for most of it getting home is only his secondary objective; his primary is finding some kind of treatment for his terminal heart condition. Crossing the boundary gets a lot easier as the series goes on. [[spoiler:At the end of the series, the Divide is closed and leaves copies of Felix and his elfin friend Betony on each side, meaning that you've got one Felix trapped in the fantasy world and one Betony trapped in the human one.]]

* The ''Summoning'' series by fantasy/romance author Robin D. Owens focuses on a group of Colorado women who are called, one by one, to be champions of the world of Amee. Unique in that any Earth-native brought to Amee will eventually face the Snap... a point where Earth tries to call the person back, and will unless she has made a stronger commitment to Amee.

* ''Literature/ThatTimeIGotReincarnatedAsASlime'': Of the three types of [[DimensionalTraveler Otherworlders]], two of them (Stray and Summon) fit this trope the best while the third are known as [[ReincarnateInAnotherWorld Reincarnators]]. The latter are those [[SummonEverymanHero summoned by those from the main world]], while the former are those literally plucked from their worlds at random to this one, hence being called "Strays". They don't even need to be in life-threatening danger for it to happen.

* ''Literature/TheLaundrySeries'': In the ShortStory "Pimpf", Bob's new intern, PlayfulHacker Peter-Fred Young, doesn't listen to him and manages to trap himself inside the heavily modded ''VideoGame/NeverwinterNights'' scenario Bob was building to catch people who might summon {{Eldritch Abomination}}s with [[LevelEditor the Toolset]]. Bob has to go in after him with his roommate Pinky running the DM Client from outside.

* ''Land of Oblivion'' has its KidHero protagonists transported to a place where dead children have their afterlife. The place is not all rosy, though, and they have to [[spoiler:save the girl's brother from becoming DeaderThanDead]].

* In ''Literature/TheInvertedWorld'' by Creator/ChristopherPriest (novelist), a city has somehow become transported to a bizarre alternate world, one where they must constantly move forwards in order to survive.

* In ''LightNovel/GrimgarOfFantasyAndAsh'', 12 young adults wake up in a medieval fantasy world with [[LaserGuidedAmnesia no memory of how they got there]]. They know that they come from another world (and they are initially dressed in modern day clothing), but [[LaserGuidedAmnesia are unable to remember anything past that]]. Without a way back home, they must find a way to adjust to this new world.

* In ''LightNovel/TheIdealSpongerLife'', Zenjirou is transported to an alternate world to be married to the queen, due to two of his ancestors being from the other world.

* In ''LightNovel/InAnotherWorldWithMySmartphone'', Touya is reborn in a magical world after accidentally being struck by lightning along with his Smartphone. In addition to this, he is given magic powers.

* In ''LightNovel/NitosLazyForeignWorldSyndrome'' As Hidako Masamune was about to commit suicide, he and his classmates are summoned to the Kingdom of Gray Belka to fight against the Demon Lord and his army. When they learn that he possesses the class of "Healer" which is considered to be the weakest class, they decide to dispose of him instead.

* ''LightNovel/OthersidePicnic'' bucks conventional isekai tropes (highlighted by the ''"urasekai"'' in the original Japanese title as opposed to the typical ''"isekai"'') by having entries that allow people to move between Earth and the titular Otherside at will. That said, sometimes people can be brought into the Otherside without warning and with no idea where the exit would be. An example is a group of US Marines stationed in Okinawa that was transported to the Otherside while training in the mountains. In the same chapter the marines are introduced, the tavern that Sorawo and Toriko were eating at suddenly sends them over without any warning.