Nightmare Under Universe - Black Cat Studio - Wattpad

Nightmare Under Universe

Reads 354
Votes 14
Parts 11
Time 1h 3m

Reads 354
Votes 14
Parts 11
Time 1h 3m

action crossover drama family friendship nightmarebeforechristmas romance stevenuniverse undertale

Steven and his friends (Pearl, Sans, Frisk, and Peridot) had met with a three dress up kids who turn out to be working for an evil monster in Halloween Town, Oogie Boogie. With that the four ended up in a town call Halloween Town meeting the Pumpkin King, Jack Skellington, and his whole family with a good friend of Jack's son Friday. 
Would the four ever make it back home or would they be trap in Halloween Town?
Read and Find Out!All Rights Reserved

action crossover drama family friendship nightmarebeforechristmas romance stevenuniverse undertale

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11 parts

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A Skelly's Love by CipherGirl001

A knight in shinning armour is nothing compared to a skeleton in a pinstripe suit. Well sort of. (Y/N) has lived with her family in peace for her whole life... that is until her 16th Halloween when a strange trio of trick-or-treaters came to her house. Will the prisoner of The Boogie man find her savoir or will she remain captured and abused for the rest of her life in Halloween Town? Disclaimer: I do not own anything in The Nightmare Before Chrismas or the reader. I only own the plotline.

Dreamswap nightmare deep secret ( leviathantale) by Moonwolf_230

it was a hot summer day and everyone want to go to the beach. the meme squad were in other side of the beach while Jr were in other side far way from each other. everyone kinda knows nightmare scary ( not scary) of water. but nightmare had a deep secret from everyone he kept. noone knows except Kevin who seen it in his own eyes. and that demonic chicken knows how keep nightmare secret. so will they fine out nightmare deep secret? or will nightmare exposes himself save everyone? ( plus this is not my cover on the image)

Grillby X Reader (Completed!) by savchiko

What would you do if you realized you had been replaced by a monster? In this story, you live in a small but cute and cool house with your sister and parents. Your fairly interested in art, and love the starry sky. Everything would be perfect, if only your friends and family weren't such a pain. When your friends replace you with a monster named Grillby, you cut off the friendship and meet Undyne and Alphys! But there's one problem. It seems Grillby won't let you cut the friendship between you and him off. (UNDERTALE WAS MADE BY TOBY FOX. I TAKE NO CREDIT FOR THESE CHARACTERS) (ART BY: tesazombie on tumblr) (Completed book!)

Of Gems and Demons by JungleFurious

A young man comes to Beach City, hoping to find answers about his past and where his future might take him after his mother died. There he meets a young boy named Steven and his four caretakers called the Crystal Gems named Garnet, Amethyst, Pearl, and Spinel, with the four of them knowing his mother. What he never expected when he met them was to be pulled into an adventure he'd never thinker he be a part of. He will go up against other Gems from outer space, crime lords, and demons, but he will not face them alone. The odds are against them, it won't be easy, but they're not going to do this alone. Why? Because they are the Crystal Gems, they always save the day, and if you think they can't, they always find the way!

An Underswap AU: A Tale of Seven Book 1 by sabermoonlight1616

The Multiverse is vast, expanding continuously as more alternate dimensions are being created. Each world possesses it's own unique laws, stories and inhabitants. This world in particular, based on the well known Underswap Canon Universe, happens to revolve around three important questions. What if the first six humans who fell after Frisk never left the Ruins? What if the world is slowly succumbing to the corruption caused by the RESETs? And. . . What if Sans' cooking improved? A/N This is my own interpretation of Grouptale, in the Underswap Universe. Please read the Disclaimer and Warnings.

Gemtale | Lapidot Undertale/human AU by XXX_LunaLovegood

It's lapidot! But as Undertale. I added some changes,like how Lapis and Peridot stay together after their children die unlike Toriel and Asgore,but fall into a dark spiral (not literally) and turn into literal gems like in Steven universe and become a fusion. A dangerous one,to be specific. Also more near the end,they DO spilt but they'll get back together in the second book. They only did that because they needed a break. Anyways,I'm not gonna waste anymore of your time so...HERE THIS IS! (Cue the credits) Cover by me Steven Universe by Rebecca Sugar Undertale by Toby Fox Storyline by Toby Fox/me Character design by me/Rebecca Sugar/Toby Fox

Mouseketeer Khyler's Adventures Of Tim Burton's The Nightmare Before Christmas by GreenRiver85

This crossover story follows the misadventures of Jack Skellington, Halloweentown's beloved pumpkin king, who has become bored with the same annual routine of frightening people in the "real world." When Jack and his new friends accidentally stumble on Christmas town, all bright colors and warm spirits, he gets a new lease on life -- He plots to bring Christmas under his control by kidnapping Santa Claus and taking over the role. But Jack soon discovers even the best-laid plans of mice and skeleton men can go seriously awry.

Children of Darkness (Soul of Void) - [FGoD!Error Sans] by LunaRoAC

[HK/Undertale Crossover] For ages, the Void godness has to sit and see how her multiverse was fill and filled by AUs of her Universe, Undertale, she hated them at first, but now all her hate fall in their creator, Fate's spawn, Ink. For ages she has been incapabel to help those children of hers outside her Universe, the so-called Dark Sanses, the Guardian of Negativity, the God of Destruction and those under their protection, has to watch them beign hurt over and over again from the hands of their Universes or by the hand of the self preclaimed protectors of the Multiverse, the Star Sanses. When Destiny comes to her with a plan to put them in a safe place, she inmediatly agrees. Meanwhile, in another Multiverse, other Void God makes a deal with the ruler of Hallownest. The Pale King would give him back ALL of his children and then he would help him against the Infection caused by the Moth godness. So he is very confused (and a bit mad) when months later he can feel six more children enter to Hallownest without an explication.

The Nightmare Before Christmas: Oogie's Revenge Remake by Detectivegel

HAPPY HALLOWEEN!!!!@ It's from the game I like so I thought I do a remake about a human boy meets Jack Skellington where they save the holidays from Oogie.

Cracked - Septiplier by are_you_squidding_me

DISCLAIMER: This story was discontinued, and I will not be returning to it. I do not ship septiplier anymore, as I realized how shipping actual people is problematic. Also, my writing is absolutely terrible since I wrote this several years ago. Read at your own risk. A septiplier AU where everyone has a gem (based off of the show, Steven Universe).

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Slide 1 of 10

A Skelly's Love cover

Dreamswap nightmare deep secret ( leviathantale) cover

Grillby X Reader (Completed!) cover

Of Gems and Demons cover

An Underswap AU: A Tale of Seven Book 1 cover

Gemtale | Lapidot Undertale/human AU cover

Mouseketeer Khyler's Adventures Of Tim Burton's The Nightmare Before Christmas cover

Children of Darkness (Soul of Void) - [FGoD!Error Sans] cover

The Nightmare Before Christmas: Oogie's Revenge Remake cover

Cracked - Septiplier cover

A Skelly's Love

A knight in shinning armour is nothing compared to a skeleton in a pinstripe suit. Well sort of. (Y/N) has lived with her family in peace for her whole life... that is until her 16th Halloween when a strange trio of trick-or-treaters came to her house. Will the prisoner of The Boogie man find her savoir or will she remain captured and abused for the rest of her life in Halloween Town? Disclaimer: I do not own anything in The Nightmare Before Chrismas or the reader. I only own the plotline.