Questions tagged [parallel-universe]

For questions about a parallel universe or alternative reality, a hypothetical self-contained separate reality coexisting with one's own. A specific group of parallel universes is called a "multiverse", although this term can also be used to describe the possible parallel universes that constitute reality.

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12
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1answer
1k views

Children's book with “square triangles” in parallel universe?

In the 1960s I read book--an older children's book, I think--which I loved, and still remember, roughly. I have no idea what the title is or who the author is, and I'm wondering if anyone knows this ...
24
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1answer
3k views

Story about machines generating energy with parallel universes, endangering ours

I suppose I read this story in a book in the nineties but I have no memory of actually reading it or the cover, I just remember a lot of the plot. Scientists find out they are being contacted by the ...
16
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1answer
550 views

What “time travel” story required the traveller to mentally reconstruct his world in order to return to it?

Here's what I remember about it: The protagonist is sent a relatively short distance into the future (maybe a year? I've forgotten). When he arrives in this "future" he finds himself in a completely ...
8
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1answer
448 views

What book has a man in a world on the brink of an ice age with a wizard mentor?

I'm trying to find the title of an old fantasy book I read at least 20 years ago, but I have very little to help identify it. Obviously I don't remember the author name, I think it was written in the ...
10
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1answer
614 views

Fantasy novel, magic sword and different worlds

I am looking for some help remembering this book series I listened to on audiobook many years ago. It was a good story I just for the life of me can't remember the name, author or any of the character ...
8
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2answers
1k views

Book about a boy who travels to a parallel universe to get a book

I can't remember the gender of the main character. I remember bits and pieces from different books, but I think they're all part of the same series. The pieces may not be in order or from multiple ...
23
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1answer
590 views

Novel in which the protagonist fades out is forgotten by, and can't interact with, the rest of the world

Trying to identify a novel I read years ago (probably in the '80s) in which the protagonist (late teens, early 20s?) is gradually forgotten by and ceases to be able to interact with the rest of the ...
28
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4answers
7k views

Can Marty McFly ever truly return home?

In the Back to the Future trilogy, the character Marty McFly travels back in time, and meets his own parents. In doing this, he directly changes the outcome of many things including the relationship ...
6
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1answer
533 views

A gateway to a new world/future where things can be improved with use

This book is about an explorer (with robot companion) who walks through a "gateway" into the future/parallel world. In this world, things that are created do not fall into disrepair, instead things ...
14
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1answer
994 views

Why would Quinn wait to Slide to a new reality?

In Sliders, the first trip they make they slide away from earth before their timer counts down. This means they can't get back to Earth-1 directly. Later in the series they're faced with many, many ...
18
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1answer
2k views

Story about a multiverse theory of immortality

Please help me identify a short story I read about a guy who believed that the multiverse was true, but the one that we experienced was the one in which we lived the longest. He was also contemplating ...
34
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3answers
4k views

Story Identification: Fantasy world that is “the one true world”

Sometime in the early 90's, I borrowed an audio book from a local library. I would be interested in reading it in full, but I don't remember the author or title. Given that it was an audio book in a ...
18
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1answer
2k views

Short story about a hole to another universe that pulls in metal

This question reminded me of a story I read in the 90s. A woman is caught shoplifting a bunch of metal items by throwing them into her purse. She has no memory, and the purse is empty. Anything metal ...
11
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2answers
5k views

90's TV series where a boy goes to another dimension through portal near power lines

I am desperately trying to remember a name of a TV series probably from 90's. I remember these points: A boy goes to another dimension through a portal near a power lines. This dimension has a sort ...
15
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3answers
771 views

Short story where a character moves through dimensions via mental exercises

It's been about 25 years since I read a story in an anthology. The only details I remember from it are that a guy is told that if, while walking down a road (or something similar), he mentally forces ...
6
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1answer
207 views

Looking for a short story title about a “weird house”

A man's house gets altered by some rat-like creatures, so it is somewhat bent in on itself. It has become a portal to another part of the universe. He pokes around on the "other side" because he is ...
33
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1answer
6k views

Is there a depiction of Superman where he is an African American?

Is there a comic book, animation, or any other media where Superman is depicted as being an African American? I know that there are alternate universes where he is, for example, a Soviet, but I'm ...
10
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1answer
207 views

Book where a group of teenagers travel to a fantasy world

15 to 20 years ago I read a book (a trilogy I think) about a group on teenagers from a world similar to ours, who traveled to a fantasy world. I don't remember much about these books, just some ...
9
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1answer
628 views

90s fantasy book: man can access a parallel medieval world while 'dreaming'

I read a book in my high school library back in the late 90s and pretty sure it was written in the mid 90s. I can't remember the author or title. The setting is current to the 90s mid-west. But it ...
7
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2answers
275 views

Story ID - Humans of various epochs are transported to a world

I woke up the other morning with this story on my mind. I've tried some googling, but my efforts are coming up with nothing useful. My memory of the specifics of the material is pretty pathetic, ...
3
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4answers
1k views

Looking for a book featuring a soldier/marine travelling to a different time/universe

I picked up a book a year ago and read the summary at the back(part of a series maybe?) at a airport bookshop but had to stop because of my flight was about to depart. I can't remember the author or ...
13
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1answer
449 views

Help Identifying an Alternative History Novel

I read a novel when I was 12 or 13 (late 80's, early 90's) about two timelines combining on Earth. It was a full length novel for adults that I swiped from my mom (she doesn't rememeber it at all.) ...
10
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1answer
411 views

Looking for a sci-fi collection book 2000 to 2010 containing two specific stories

First, the cover has a purple alien riding a motorbike down a road at night. As I recall it's sort of squid like, and wearing biker clothes. The two stories are: Three friends discover a device ...
7
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1answer
433 views

Protagonist in mist/fog in a featureless place

Looking for title / author. A thin book I read in the early '60s. Maybe 100-125 pages. Protagonist alone in fog/mist in a featureless place. As the book progresses more people show up and are as ...
6
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2answers
1k views

What's special about the Mirror Universe?

The Mirror Universe is depicted in no fewer than eight Star Trek episodes. It's established that these take place in the same universe. In "Crossover", Mirror Kira recaps the TOS episode "Mirror, ...
4
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2answers
1k views

Short story about addictive games and virtual realities

This was a short story I read in the 80's but I think it was written earlier than this. It was about a man who was hit by a bus and thrown through a shop window. When he became aware he was in the ...
4
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1answer
276 views

What story features the day electricity vanished?

I think this short story was written in 50's or 60's. The premise is that all of a sudden, all forms of electricity stopped working, and people had to revert to a simpler way of life.
47
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12answers
6k views

What is the first instance of a portal to another world?

In ancient Greece, the gods lived up on a mountain, and Hades seems to have been a place that you could sail to. Personally, I think in modern times the concept of a portal or wormhole is so familiar,...
12
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3answers
477 views

What was the earliest SF work that used the idea of the “Multiverse”?

The discussion below this question leads me to ask: What was the earliest SF work that used the idea of the Multiverse (parallel universes or alternate worlds)? I'm looking for fairly hard SF ...
9
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1answer
314 views

Help Identify Youth novel about higher dimensions [duplicate]

I read this book about 10 years ago I think. It was probably published in the 90s but quite possibly the 80s. The main plot as I remember involved a high school girl who falls for the new student. He ...
9
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1answer
253 views

Girl that can take shortcut through space by taking a 1/2 turn as she steps up

This was a pre-1970s YA book. I cannot recall much about the plot, but I was impressed by her entering an alternate universe where three parallel lines intersected to form a right angle. I think her ...
6
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0answers
2k views

Story or movie about a man with 2 alternate lives (reality and in dreams)

I barely remember a story or movie about a man (or maybe woman) who had 2 lives: when he goes to sleep he wakes up in his dream, and when he falls asleep in his dream he wakes up in his real life. But ...
20
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1answer
820 views

What exactly are the 'voids' in the Fringe parallel universe?

From what I can tell the primary reason that the other parallel universe is seeking to destroy our universe is because they presume that the voids that appear there are being caused by this universe. ...
11
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1answer
760 views

How many “universes” are there in Star Trek canon?

I just finished watching Star Trek:TOS. There were at least two episodes dealing with other dimensions, the mirror universe and the anti-matter universe. How many "universes" are there in Star Trek ...
10
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1answer
1k views

An old book series about stones, teenagers, and parallel worlds

There was this book series I used to read at Waldenbooks back when I was a kid. I have been looking for this series FOREVER and I am yet to find it. The only thing I remember about the book cover ...
9
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5answers
1k views

Do parallel realities take precedence over time travel in the Star Trek Universe?

The 2009 Star Trek movie and its pending sequels are based on the concept of parallel realities introduced in the season 7 Next Generation episode "Parallels," laying out that anything that could ...
8
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2answers
635 views

Looking for title of TV series about boy and an alternative world

In the middle of 2000 - 2010 I saw a TV series about a boy, who after school went to work for an old man at a shop. I don't remember clearly but shop sells old artifacts, books, suchlike. This boy ...
8
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2answers
1k views

Title of a fantasy trilogy where a group of children is transported to different worlds?

In my early teens (in the late 90's) I borrowed a series of fantasy books from the public library. I remember getting annoyed when the next book in the series wasn't in, so this series has at least 3 ...
5
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1answer
297 views

Trying to find an older book where the main character gets pulled into a parallel universe where people fight with powered armor and energy swords

From what I remember it was a book series and I picked it up from a 2nd hand store in the 1990s. Not sure when it was published. In the first book a cop? gets pulled into a parallel universe where ...
14
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1answer
892 views

Who replaced Worf Prime?

In "Parallels", our Worf finds himself uncontrollably shifting into alternate "quantum" realities, one after the other. Eventually, the crew of various alt-Enterprises succeed in locating the prime "...
11
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1answer
255 views

Looking for a book with parallel universes like pages, possibly with “maze” in title, and a black Jewish female character

Looking for a book. A series, actually. The main characters were a Jewish man and a black woman who was his wife. There was a running gag when she would tell people her last name and they thought it ...
9
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1answer
128 views

60's/70's Trio of books about being attacked by giant bats that take away your ability to think

I read the book trilogy in paperback and perhaps they only were available in “bulk” paperback. They were from the 60's or 70's. I remember one book cover - an older man dressed as a typical wizard - ...
9
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3answers
2k views

In the Star Trek Episode “The Alternative Factor”, why did Lazarus have to be locked in the corridor between universes?

Wikipedia article on the episode. It is clear to me that the Lazarus from the normal universe wanted to meet the Lazarus from the anti-matter universe, and if that would happen both universes would be ...
6
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2answers
874 views

How many parallel universes exist in Futurama?

In the first season, Fry is taken to and shown the edge of the universe, which looks onto a parallel universe. Fry turns to the Professor and asks, "Is there an infinite number of universes?," and the ...
4
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1answer
454 views

Is it possible to index an infinite number of timelines in a universe-agnostic manner?

One of the plot devices used in Rick and Morty is the concept of an infinite number of alternate (i.e. parallel) universes. The characters in the show seem to use some sort of multi-universal indexing ...