Snapped was a Dark Fic that was made by the DeviantArt user PuffedWarrior. In the narrative, Isabella is finally fed up with Phineas repeatedly ignoring her and decides to take her bloody revenge on Ferb. The fan fic originally had its own website, but it appears to have been taken down by the user. However, you can visit her page on deviantArt to see her gallery.
This fanfic provides examples of:
- The Bad Guy Wins
- Bloodier and Gorier
- Dark Fic
- Karma Houdini: Isabella Garcia-Shapiro
- Love Makes You Crazy
- Oblivious to Love: Phineas's tragic flaw.
- Revenge: Isabella wants some from Ferb for always taking Phineas away from her.
- Scape Goat: Isabella used Buford as this to get away with Ferb's murder.
- Serial Killer: Ferb, as it turns out, wasn't Isabella's only victim.
- Yandere: You better believe it.