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Boy (oh boy) The Time We Share (is not enough) by Colorful_Roses_Have_Thorns
Fandoms: Haunted Hotel (Cartoon)
10 Dec 2025
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It was a day much like any other, if not better than usual. He’d woken to a bird upon his windowsill, peacefully preening, and it even seemed to chirp in response to his morning prayer. His shoes buckled easily, and he didn’t stumble on the raised floorboard in the hall. Breakfast went well, too, as father even patted his shoulder ever so briefly, even if he scrubbed it against his pant leg immediately after. Any affection was rare from his father, so he must have been in a very generous mood indeed!
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Isaac was a good boy until he wasn't. Abaddon learns to live, love, and suffer as a human. Family isn't all that hard to come by, even if it takes so long. Wounds need not ache forever.
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No one truly understands you...
Not your family, not your friends, not even yourself...!
Oh, wait, no. Abaddon is Esther's cousin and he gets it, nevermind.Series
- Part 1 of Baby Fever - Call The Doctor!
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Nathan accidentally becomes the owner of the Undervale through a card game not long after he escapes his twelfth cult and feels trapped, miserable, lonely and unsure what to do with his life or how to really face his family. He was warned about the demon who lived on the property but can't stop himself from wanting to get closer to the boy.
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Nathan is depressed and sees a child shaped demon in the woods and decides 'this demon will be my son:)'
Also we get to see some of Nathan's lore in his cults and part of why he's struggled so much with his mental health and finally found his place at the Undervale----------------------------------------------------------------------
This can be read completely independently of everything else in the series. This is based on something I mentioned in a previous fic and several people really wanted expanded onSeries
- Part 2 of Haunted Hotel Fics
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The Undervale hotel was devoid of any life except one. Nathan took the role as the hotel's owner very seriously.
The night was long and there had been no guests for twenty nights and twenty days. The cold breeze of winter warranted a lit fireplace and that made the lobby look that much more welcoming yet still no luck.
With resignation, he got up and get started on closing the hotel for the night.
Bump!
When Nathan opened the door he didn't expect to find a child wearing a bloodied coat, laying face down on his porch.
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Nathan encounters a new ghost while going on a walk. Yes this is slow burn. Yes this is angst. Yes this is the Priest x Nathan, and yes the angst won't be what you expect.
Song title comes from AMI am a NARC! There will be lots of small edits made and maybe even fic deletion in due time because I hate my writing! :')
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Katherine mentions how Abaddon acts like a child.
Series
- Part 1 of Haunted Hotel
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Abaddon finds Nathan.
Katharine is grieving.
Maybe the best things come from the worst of circumstances.
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When Katherine and her kids have to move into the hotel her dead brother Nathan bequeathed her, Esther discovers a malevolant but childish demon chained up in the attick.
That is by far not the only overnatural thing in the hotel. Through various new additions to the Freeling family, blood and mystery, hurt and comfort, shenanigans and despair - the family will be brought to their limits.
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Thanksgiving with the freelings!! ✧ ༘
This takes place before Nathan’s dies btw.
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.Curiously, Abanddon looked back at Nathan to see what was taking him so long. What he saw was him scrambling around for his keys, checking cupboards, behind the sofas, he even ran upstairs to see if he had left them in his room. He returned back empty handed and slightly defeated.
“Hey uh Abby, have you seen my keys anywhere..? I can’t seem to find them, I thought I had left them somewhere in the kitchen…” Nathan began to ramble as he search and scavenged around looking for his car keys.
“Hmm…Or was it the actually in the foyer, Oh!, Oh! Maybe Jessica got a hold of em—“
“I ate them.”
…
“What..?”
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The boy is still there, and him and Abaddon have learned to coexist. Now they have a heartfelt conversation with eachother about Nathan. Also Abaddon forgot how to sleep.
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Broken Glass of a Family Heirloom by starfruitx, starx (starfruitx)
Fandoms: Haunted Hotel (Cartoon)
06 Dec 2025
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When Abaddon comes crashing into Nathan’s life, he is forced to accept being an adult and having responsibility.
All of his problems have one origin– himself.
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This is my idea of how Nathan killed himself and how Abaddon reacted. The title is from a song
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Which One Is the Evil Twin Again? by Never_Eat_Sour_Wheat
Fandoms: Haunted Hotel (Cartoon)
05 Dec 2025
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Abaddon jumped to his feet. He rubbed his eyes but it didn’t do anything. His reflection really was gone. It had always been a little… finicky. Sometimes certain mirrors reflected his true form back at him instead of his vessel’s body. But the only time a mirror hadn’t reflected anything at all was when it was a trick mirror and that was its purpose.
He took a step closer to the wardrobe and the mirror shifted. The door was… opening. From the inside.
Abaddon stared with wide eyes as his reflection suddenly returned. Only… it hadn’t.
“Abby?"
"...Isaiah?"
Updates Thursdays!
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How many times has Abaddon watched Nathan die?
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Esther has always been a weird kid. You know, the type of kid who would make potions out of leaves and mud in the school grounds, then be told by a teacher to stop because the incantations she was making up on the spot were ‘scaring the other kids that were around her’. She wasn’t well liked by her peers. She didn’t just dip her toes in the black magic world, she jumped straight into the water. There was no going back from that.
When Abaddon suddenly asked her to make a blood pack with him, she didn't question anything about it.
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Abaddon and Esther make a blood pact.
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Nathan lives a lonely, stagnant life.
He drinks and gambles, gambles, gambles— until he wins the hotel.
The ghosts accompany him now.
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Esther's careless summoning drags a priest out of spiritual limbo and traps him on the hotel grounds. He has a twisted ankle that won't heal, a tragic past he won't talk about, and unfortunately shares a house with the demon he once tried to exorcise.
Now he's stuck navigating a world three centuries beyond his understanding and a very vengeful housemate.
The Undervale Hotel's chaos just found a new victim.
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Small devil, you're with us now and we won't let go. by Kelkin_Some1
Fandoms: Haunted Hotel (Cartoon)
01 Dec 2025
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An Abaddon/Esther centric story following the end of season 1.
Heavy subjects such as suicide and death mentioned and explicitly described, please, read at your own risk.
Expect found family and their dynamics and silly moments. I'm writing this just for funsies so don't expect too much :)Snippet:
''Demons didn't sleep.
That much was always known to him and he would often remind it to the Freelings.
But now, he was...
Tired?
Maybe.
Maybe he was.''
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"Katherine, there's something I need to confess. Nathan rehearsed his death every night." Abaddon began slowly, looking straight at her.
"I knew but pretended not to."
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Abaddon knew about Nathan's depression and su!cide plan but had done nothing for he believed that he had no business with the plan of mortals. But he then starts to feel an unknown emotion: Guilt.
(Took inspiration from KARMA - Alien Stage (Vivinos) :3)
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After being bounded by that mad reverend. Abaddon remains in the mortal flesh of a child thats four feet tall! It's pathetic and embarrassing on his part. He used to be Abaddon of the Gerasenes, the destroyer, the beast of the pit!
Isaac— the priest's annoying spawn haunts him ever since. Always dragging him to do and say things. This chatterbox of an apparition never ceases to annoy the demon, but Abaddon tolerates him, humors him. There's no one else who stick with him for centuries, keep him company and comfort him.
Isaac is innocent and naive, stuck in time like a picture frame. The worst insult that whelp can think of is calling someone "mean".
It's such a shame that Isaac's only friend will forever be the demon who stole his body and killed his father.
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Alternatively: the vessel is an apparition who haunts Abaddon but no one else can see him— not even other ghosts.