The story followed the adventures of the Daria Morgendorffer of universe Daria-6 as she found herself involuntarily traveling to various worlds in the Daria Multiverse - starting with Mills' first story, Killjoy Was Here - and encountering alternate versions of herself, including the reality hopping villainess, Judith. This version of Daria suffered hallucinations of gruesome disasters from ages 5 to 12, which started to come back at age 18: unknown to her, her hallucination and nightmare was a vision of the destruction of universe D-316.
Worldhopper concluded in late April. 2013, with a summary (written by Erin) of the events and fates of all involved characters and settings shown during The Judith Saga. (Erin felt that he couldn't finish the fic in a satisfactory manner, but wanted fans to have a definite sense of closure to the series.) He also gave permission for interested writers to use the original characters who survived (particularly The Padre and NegaJane) in their own works.
- Worldhopper by Erin Mills (PPMB)
- Judy Blue: A Worldhopper/Worldburner Prelude by Erin Mills and Brother Grimace - sequel to The Legion Encounters 'Part 2 - An Unexpected Stop'", debut of Judy Blue; takes place prior to the Worldhopper prologue