Millie Bobby Brown doesn’t just play a detective onscreen.

The Enola Holmes star put her sleuthing skills to work ahead of the ongoing fifth and final season of Stranger Things , revealing how she uncovered the sci-fi series’ highly-anticipated conclusion before the rest of her castmates.

“I didn't really know how I was going to react,” she said on the Dec. 7 episode of The Tonight Show Starring Jimmy Fallon , “and then the night before the last table read, we didn't know what was gonna happen—nobody knew. I actually did know.”

Joking that she likes to “blackmail the directors,” Millie—who announced she adopted a baby girl with husband Jake Bongiovi in August—revealed how she managed to gather the highly-classified intel.

“I snuck into the writers’ room and I saw this r

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