✒️ Author’s Note: Why ArcaneFell Exists
This AU is inspired by Mafiafell themes and especially by Sooner or Later You’re Gonna Be Mine by Staringback and the webcomic by Melikas. If you’ve read either—you’ll feel echoes here. If not, I highly recommend both. Read them, love them, then come back and watch my version of the underworld burn. 🔥
ArcaneFell was born from the questions that wouldn’t leave me alone: What if Frisk wasn’t alone in the Underground? What if soulbonds were dangerous? What if kindness came with chains? What if Don Gaster—not Sans—had a love story? One he had no idea how to survive?
This AU builds on Mafiafell roots—but everything beyond those first days is mine: A new magic system. A rune-obsessed legal state. Multiple timelines. Over 10 million monsters in a fractured kingdom. Politics. Blood. Loyalty. And one very tired Don who doesn’t know what to do with the soul that’s tied to his.
This is not canon. This is not soft. This is ArcaneFell.
– Witch Of Ragnarok

















