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   The forgotten island by Fiery_Soul

   Fandoms: Undertale (Video Game)  

   • Mature
   • Graphic Depictions Of Violence, Rape/Non-Con
   • F/M
   • Work in Progress

   15 Jun 2026

   Tags

   • Graphic Depictions Of Violence
   • Rape/Non-Con
   • Sans (Undertale)/Reader
   • Papyrus (Undertale)/Reader
   • Sans (Horrortale)/Reader
   • Papyrus (Horrortale)/Reader
   • Sans (Underfell)/Reader
   • Papyrus (underfell)/reader
   • Sans (Swapfell)/Reader
   • Papyrus (Swapfell)/Reader
   • Underswap Sans/Reader
   • Underswap Papyrus/Reader
   • All skeletons/Reader
   • Sans (Underlust)/Reader
   • Papyrus (Underlust)/Reader
   • Sans (Fellswap)/Reader
   • Papyrus (Fellswap)/Reader
   • Sans (Fellswap gold)/Reader
   • Papyrus (Fellswap Gold)/ Reader
   • Sans (Undertale)
   • Papyrus (Undertale)
   • Frisk (Undertale)
   • Chara (Undertale)
   • Toriel (Undertale)
   • Asgore Dreemurr
   • Asriel Dreemurr
   • Muffet (Undertale)
   • Undyne (Undertale)
   • Alphys (Undertale)
   • Grillby (Undertale)
   • Flowey (Undertale)
   • Mettaton (Undertale)
   • Bara Sans
   • Bara papyrus
   • Universo alternativo - Underfell Universo alternativo
   • Universo alternativo - Swapfell
   • underswap - Freeform
   • Fluff
   • Reverse Harem(?)
   • Spider-Skeleton
   • Skeletons have DNA of animals
   • Lamia skeleton
   • Magical human
   • mischievous skeletons
   • Fluff and Angst
   • Violence
   • Fluff and Smut
   • Islands
   • Soulless Humans
   • Ecto-Body (Undertale)
   • Alpha/Beta/Omega Dynamics
   • Healthy Relationships
   • Human/Monster Romance
   • Polyamory
   • Second Chances
   • Hurt/Comfort
   • Sleepy Cuddles
   • Action & Romance
   • Blood and Injury
   • Emotional/Psychological Abuse
   • Awkward Sexual Situations
   • Slow Burn
   • The Bonezone
   • Reverse Harem
   • Named Reader
   • Attempted Rape/Non-Con
   • But not from us skeletons
   • Enemies to Friends to Lovers
   • Mates
   • Angst
   • Reader Is Not Frisk (Undertale)

   Summary

   The island had been forgotten for a long time now, the monsters believed that they would now live in peace on their island far from the human world. But humans are the most megalomaniac beings of all. Eager for riches, they began to plunder all over the island, and the monsters were unable to counter them. But what would happen if a scientist and a monster agreed to create new life forms, to stop all this?

   Our skeletons will have DNA from dangerous animals inside them!

   O and the island suffers from a shortage of females so... it will be fun🤭

   Language:

   English

   Words:

   124,695

   Chapters:

   22/?

   Comments:

   431

   Kudos:

   543

   Bookmarks:

   143

   Hits:

   21,298

   Bookmarked by Theweirdone1

   24 Mar 2024