Fics like Something Very Odd has Happened...We're in a Crossover!

Two organizations. Two types of agent. One awesome team-up. Or, Perry the Platypus is assigned a mission in the territory of Odd Squad Precinct 13579 and ends up meeting agents Otis and Olympia while he's there.

You may also like

  1. What's She Doing Here? by kittyhazelnut (Phineas and Ferb)
  2. Capturing the Past by Winter_S_Jameson (Phineas and Ferb)
  3. Watching the Cipher-Verse by Mandalore_the_Atreides (Phineas and Ferb, Phineas and Ferb the Movie: Across the 2nd Dimension (2011), more)
  4. Danganronpa 420: Crossoverdose by GhettoFurret (Dangan Ronpa - All Media Types, Phineas and Ferb, more)
  5. Waterlogged by TolkienScholar23 (Phineas and Ferb)
  6. Mistakes and Worry by Fangirlwriting (Phineas and Ferb)
  7. Give Me Something To Cry About by IronicAppreciation (Phineas and Ferb)
  8. Store your nemesis under your bed by KissingLizard (Phineas and Ferb)
  9. Let's all assume the worst by KissingLizard (Phineas and Ferb)
  10. I'll Be Honest With You by KissingLizard (Phineas and Ferb)
  11. Towards the Sun by Word_Addict (Phineas and Ferb, Gravity Falls)
  12. Into The Mysterious Force by NaluFanForLife (Phineas and Ferb, Phineas and Ferb the Movie: Across the 2nd Dimension (2011))
  13. Carpe Diem by Isabel3710 (Gravity Falls, Phineas and Ferb)
  14. Inventions, Mysteries, Amphibians, And Titans: A Chat Fic by Insecdroid, Orahm%20Xoorha (Phineas and Ferb, Gravity Falls, more)
  15. Venom by Phinmeister (Phineas and Ferb)
  16. Saved From The Lab Coat by kittyhazelnut (Phineas and Ferb, Milo Murphy's Law)
  17. Half a Step Clockwise by NPP6 (Phineas and Ferb, Phineas and Ferb the Movie: Across the 2nd Dimension (2011))
  18. An offer (you can refuse) by KissingLizard (Phineas and Ferb)
  19. What If Ideas by TheGametimer (What If...? (Cartoon 2021), Multi-Fandom, more)
  20. The Stuff of Legend by Rehearsal_Dweller (Phineas and Ferb)