The Wandering Inn
Where to ReadWebsite Amazon Audible
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This popular web serial that began in 2016 is considered to be one of the longest pieces of fiction ever written. As of this writing there are 11 published books on Amazon, all over 1000 pages long but the series remains completely free to read on its own website.
The unhurried, casual pacing of this story give ample opportunity to explore the world the protagonist finds herself transported to and meet many, many different characters along the way.