This is a compilation of all the canonical stuff we know about the nature of alternate universes in the Dresdenverse, including book excerpts and Words of Jim. Seeing how that's apparently the plot of Book 17, Mirror Mirror, I thought I would get a headstart:
WORD OF JIM:
2011 KC signing:
Have you ever had the idea to have a short story of Dresden crossing over into another universe, like Star Wars?
No, because I don’t want to get sued. However, just so you’re aware the Dresden Files universe exists in a big, wide, spectral multi-verse. It’s not like there’s parallel Earths. There’s an entire broadcast spectrum of parallel Earths, and if you go far enough you’ll find the parallel that’s where ???. You’ll find the parallel Earth where Star Wars…Read more >
Pretty much what it says on the tin. Unless I change my mind, I do not plan it to be an article. Rather, all credits go this timeline on the Jim Butcher forums, which is in great parts copied here, but I think is inaccessible to some or if you don't have an account. It is also impossible to save the original timeline on the web archive, so this blog post also serve for recording purposes in case the original timeline get lost somehow.
Without further ado, a timeline trying to list the events in the Dresdenverse in chronological order. This timeline will try to harmonize the events from all the mediums that tell the stories of the Dresdenverse, so long as they are canon, things that happen in the story as it goes, things that have come to pa…Read more >