CORROSION

Based of a lost episode and a fnf Aethos mod. Lore: Phineas creates a machine that would give the gang Superpowers but doof ray mixed up phineas machine and shot the machine and rotted earth leaving everyone to slowly die and rot to Phineas's creation. but isabella remained in the backyard rotting and she confronted Phineas before Dying Isabella confessed her love to phineas before she died before the song (your phineas)