"Thorin and Fili and Kili and the hobbit went along the shore to the great bridge. There were guards at the head of it, but they were not keeping very careful watch, for it was so long since there had been any real need. Except for occasional squabbles about river-tolls they were friends with the Wood-elves."
The Hobbit, "A Warm Welcome"

River Trolls are a type of troll never actually mentioned in J.R.R Tolkien's writings. The idea that Tolkien wrote about them arose from a misreading of the text in The Hobbit. As the Dwarves enter Lake-town, the narrative mentions "occasional squabbles about river-tolls" between the men of Lake-town and the nearby elves.[1] In other words, squabbles over whether the elves or the men could collect (or had to pay) tolls for passing down the river. Some readers mistakenly read the word tolls as trolls, thereby imagining entirely new creatures called "River-trolls" that Tolkien never intended.


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In the video game LEGO The Hobbit, River Trolls are actually added as part of a DLC, making it possible that the game designers were among those who fell for this common misreading. River Trolls can be found in some fantasy games, Beasts of War and RuneScape, for instance.


  1. The Hobbit, Chapter X: "A Warm Welcome"

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