KaiIsAMassiveLoser



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  1. Public Bookmark 25

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    Summary

    "You must hide me!" Abaddon wheezed while catching his breath, "He's coming! He's going to destroy my essence!"

    "Who is coming?" Katherine asked as she crouched down to his level. She gently took his little hands into her own. Katherine rubbed her thumbs on the back of his hands, the same way she used to comfort her own children when they'd run to her in panic.

    "Step away from the damned," A deep voice growled from the doorway. Katherine turned her head to find a new ghost had entered the building. He had clearly died a long time ago given his appearance, but this was the first time she had seen him.

    Katherine gently rubbed Abaddon's back while holding him close, "You are?" She asked with a raised eyebrow.

    "Father Joseph," He replied, "I am the father of the child that monster has possessed. Unhand him now. He is a danger to you and everyone you care for,"

    ____________________________________

    When the father of the child Abaddon possessed shows up at the Undervale to exorcise Abaddon, the Freelings discover the child was inside Abaddon's head the entire time. They decide to try separating their souls into separate bodies. What could possibly go wrong?

    Language:
    English
    Words:
    25,016
    Chapters:
    11/?
    Comments:
    76
    Kudos:
    215
    Bookmarks:
    25
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    2,396

    22 Feb 2026

    Bookmarker's Notes

    Split in 2

  2. Public Bookmark 43

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    When Abaddon accidentally revives an old foe, the Freelings must rally to protect him. Katherine, however, has some doubts. It's hard to love a demon who seems hell-bent on destroying your life—especially when that demon isn't very good at letting himself be loved.

    Can the two of them learn to accept one another? Or will a centuries-old enemy tear their family apart?

    Language:
    English
    Words:
    39,220
    Chapters:
    11/11
    Comments:
    240
    Kudos:
    293
    Bookmarks:
    43
    Hits:
    4,050

    16 Feb 2026

    Bookmarker's Notes

    On god this is good - mortalish Abaddon ending

  3. Public Bookmark 44

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    Summary

    Abaddon isn’t a demon, he’s a child raised in a cult and told his whole life that someday he would reach his true potential and his real form. He was rescued from the cult, but he’s been hospitalized ever since with severe PTSD and religious psychosis. No one has been able to get through to him yet, but Katherine has just been assigned to him as his new trauma therapist, and there might be hope for him after all.

    Inspired by Forgan’s mental hospital AU and written with permission.

    Language:
    English
    Words:
    17,428
    Chapters:
    4/?
    Comments:
    74
    Kudos:
    226
    Bookmarks:
    44
    Hits:
    2,197

    14 Feb 2026

  4. Public Bookmark 3

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    Summary

    Spider-Man AU where Abaddon is a human child that was raised in a lab and after getting injected with a radioactive spider's venom he gained spider powers. This fic takes place when Nathan found him in the pit in but in my AU.

    I have posted more stuff about my AU on Tumblr where I go more into depth about everything, and might also clear up some confusions, if there are any! If you wanna check it out search the "spider don au" tag! :D

    Series
    Language:
    English
    Words:
    17,022
    Chapters:
    6/?
    Comments:
    16
    Kudos:
    41
    Bookmarks:
    3
    Hits:
    440

    12 Feb 2026

  5. Public Bookmark *

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    A character study of one Morty Smith, and how his morals don't quite click with his lifestyle.

    ("What are you most afraid of?" the teacher asked. She wrote the question on the whiteboard in red marker.

    Morty knew what he was most afraid of.

    He jotted down the word "myself.")

    Language:
    English
    Words:
    761
    Chapters:
    1/1
    Comments:
    43
    Kudos:
    2,535
    Bookmarks:
    356
    Hits:
    14,721

    11 Jan 2026