The companion book, titled Stranger Things: World Turned Upside Down: The Official Behind-The-Scenes Companion, and the gift book will hit shelves in fall 2018.
Whenever a show blows up in the way "Stranger Things" has, there's usually merchanside to go with it.
Based on Stranger Things the Netflix show, Eleven's mom was a participant in the USA government's MKUltra program, a real program often made the source of both conspiracies and fictional work.
It's the 2019 books that will interest fans, the first being a prequel novel scheduled for release in the Spring season. The latter will include "advice, wisdom, and warnings from the Stranger Things world", according to the publisher.
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A prequel novel about Eleven's mom and the MKUltra program along with other stories will arrive in early 2019.
The new novel, which has yet to be named, will explore Terry's" "intersection with the MKUltra program" and we'll "get to know and love her in a whole new way'.
Gwenda Bond, who is known for her body of work in young adult literature including Girl on a Wire and Lois Lane: Fallout, will write the prequel.
Audiobook editions of the titles will be released by Penguin Random House Audio. Let us know your thoughts in the comment section below!
According to Deadline, the books will initially launch in partnership with Del Rey Books, Random House Children's Books, Penguin Random House Children's United Kingdom and Cornerstone Publishing.