It was announced this morning that Penguin Random House will partner with Netflix on a worldwide publishing deal for books based on the critically acclaimed Netflix original series “Stranger Things”, says Deadline.

The first two titles, set for a release this fall, will be a behind-the-scences companion book and a hardcover gift book for young readers.

While this news is exciting in itself, the big news is that those two books will be followed next spring by a “Stranger Things” prequel novel, written by author Gwenda Bond, about Eleven’s mother and the MKUltra program!

Additional titles for both adults and young readers will arrive later in 2019.

This fall’s companion book carries this short title: “Stranger Things: World Turned Upside Down: The Official Behind-The-Scenes Companion”. The as-yet-untitled gift book will offer “advice, wisdom, and warnings from the ‘Stranger Things’ world,” says the publisher.

The “Stranger Things” books will initially release under the U.S. and British Commonwealth publishing teams of Del Rey Books, Random House Children’s Books, Cornerstone Publishing, and Penguin Random House Children’s UK, with additional territories and imprints to follow.

Audiobook editions will be published by Penguin Random House Audio.