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Will Byers was hooked up to a tendril while he was strung up in the Upside Down equivalent of Hawkinspublic library.


Season One

Joyce and Chief Hopper found Will Byers with the tendril in his mouth, extending through his esophagus, and into his stomach. Hopper pulled it out of his throat before shooting and destroying it. [1]

Behind the Scenes

The tendril was made of rubber and edited with visual effects in the final version.[2]


  • While the official name of the "tendril" has not been clarified, it is referred to as such in the English closed captioning.
  • Although there is a track on Stranger Things, Volume Two titled "Tendril", it does not play during the scene involving the tendril, but rather the scene in which Eleven finds Barb's corpse.



  1. Stranger Things Season 1: "Chapter Eight: The Upside Down"
  2. "Cast of "Stranger Things" | BUILD Series" BUILD Series on YouTube. September 7, 2016.

The Upside Down
Locations The Upside DownThe GateHawkins National LaboratoryPublic LibraryPortalsHawkins tunnel system
Entities D'ArtagnanThe DemogorgonDemogorgon (species)Library TendrilThe Mind Flayer
Visitors Joyce ByersWill ByersElevenBarbara HollandJim HopperShepardNancy Wheeler
Miscellaneous Upside Down eggThe Upside Down (episode)Dungeons & DragonsThe Void
Articles may contain spoilers.

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