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1. Symbols that Bind by Electricneonbat

   Fandoms: Adventure Time (Cartoon 2010), Adventure Time: Fionna and Cake (Cartoon 2023)  

   • Explicit
   • Graphic Depictions Of Violence
   • F/F, F/M, M/M, Multi
   • Work in Progress

   09 Feb 2026

   Tags

   • Graphic Depictions Of Violence
   • Princess Bubblegum/Marceline
   • Prince Gumball/Marshall Lee the Vampire King
   • Fern the Human/Finn the Human
   • Jake the Dog/Lady Rainicorn
   • Princess Bubblegum & Finn the Human & Jake the Dog
   • Princess Bubblegum & Prince Gumball
   • Princess Bubblegum & Peppermint Butler
   • Princess Bubblegum
   • Marceline (Adventure Time)
   • Prince Gumball
   • Marshall Lee the Vampire King (Adventure Time)
   • Fern the Human (Adventure Time)
   • Finn the Human
   • Jake the Dog
   • Lady Rainicorn
   • Lumpy Space Princess
   • Breakfast Princess (Adventure Time)
   • Flame Princess (Adventure Time)
   • Huntress Wizard
   • Fionna the Human
   • Gata (Adventure Time)
   • Hunson Abadeer
   • Shoko (Adventure Time)
   • Cousin Chicle | Crunchy
   • Peppermint Butler
   • Not Beta Read
   • Alternate Universe - College/University
   • Fantasy
   • Magical Tattoos
   • Demons
   • Demon Summoning
   • Contracts
   • Ghosts
   • Magic
   • Other Additional Tags to Be Added
   • Slow To Update
   • Species Swap
   • Age Difference
   • Bonnie is 18 Marcy is over a thousand there's a bit of an age gap here
   • Trans Marceline (Adventure Time)
   • Trans Marshall Lee
   • Marcy and Marshall are twins

   Summary

   There are three rules in summoning: No demon fighting, no contract breaking, and absolutely no falling in love with your demon.

   Bonnibel Bubblegum is a freshman at the Ooo Institute of Magic, embarking on her demonology major. Impatient to get started, she summons a demon outside of class, locking her in a contract with a demon that just so happens to be the princess of hell. Circumstances force her to spend time with her academic rival, Gary Gumball, because he's in trouble for the same reason she is and it turns out that he's bound to her own demon's twin brother.

   Turns out the king of hell really doesn't want his children bound to a pair of mortals, and what was once a foray into academia turns into a fight for survival against the forces of hell itself as the king extends his claws to get his children back.

   Language:

   English

   Words:

   3,547

   Chapters:

   1/16

   Comments:

   8

   Kudos:

   11

   Bookmarks:

   3

   Hits:

   80