From the Entertainment Weekly Exclusive:

X-Files fans will be able to add a new chapter to Mulder and Scully’s story with The X-Files Origins series, a pair of YA novels about 15-year-old Dana Scully and 17-year-old Fox Mulder. 

EW can exclusively announce the two new novels in The X-Files Origins series, Agent of Chaos and Devil’s Advocate. Each story is set in the spring of 1979, when serial murder, the occult, and government conspiracy were highlighted in the news. The books, acquired by Imprint/Macmillan Children’s Publishing Group, follow Mulder and Scully as they experience life-changing events that set them on the path to becoming the FBI agents depicted by David Duchovny and Gillian Anderson on the cult-favorite TV show The X-Files.

Agent of Chaos, Mulder’s story, will be written by No. 1 New York Times bestselling author Kami Garcia, the co-author of the Beautiful Creatures and Dangerous Creatures novels and the author of the upcoming The Lovely Reckless, publishing Oct. 2016 from Imprint. Her solo series, The Legion, includes the New York Times bestseller Unbreakable and the sequel Unmarked, which were both Bram Stoker nominees.

Devil’s Advocate, Scully’s story, will be written by Jonathan Maberry, a New York Times bestselling thriller and horror novelist, multiple Bram Stoker Award winner, and Marvel Comics writer. Maberry’s novels include Assassin’s Code, Dead of Night, Patient Zero, and Rot & Ruin.

“When I watched the pilot episode back in 1993, I became immediately obsessed with The X-Files,” says Erin Stein, Publisher of Imprint, in a statement. “As a die-hard fan of the show, the opportunity to work with incredible authors on original stories about these characters is a dream come true for me. Why did Mulder become a believer? Why did Scully become a skeptic? We get to tell those stories.”

Agent of Chaos and Devil’s Advocate are set to publish simultaneously in January 2017.