MCF and the Revenge of Argost is an upcoming MCF story written by trache17. It is a spin off story to The Secret Finnigans
- Tracy (As a teen and as an adult)
- Doyle Blackwell (As a teen and adult)
- Tricia (As a teen and adult)
- Zak Saturday (Return)
- Susan Finnigan (Return)
- Doc Saturday (Return)
- Drew Saturday (Return)
- V.V. Argost (Main Antagonist) (Debut)
- Munya (Debut) (Minor Antagonist)
- Zak Monday (Return) (Minor Antagonist)
- Susan Sunday (Return) (Minor Antagonist)
When Argost was defeated by Zak Saturday and his girlfriend Susan Finnigan, he didn't get destroyed like they thought. Instead he only vanished and time-traveled back into the past. When they figure out about Argost, Zak and Susan head to the past where they encounter the MCF, now in order to defeat Argost they have to work together with the past MCF once and for all.
- MCF Theme (To the Tune of Monster High)-MCF
- More songs will be added as the authoress can think of some.
- We find out that Argost never died on the last episode of Secret Saturdays instead he had gone back in time.
- Tricia learns about a future breakup with her and Doyle and then got back together twice.
- This takes place after Secret Finnigans and after the events of MCF and the Return of Black Star.