Twentieth Century Fox is finalizing a deal for “The Fault In Our Stars” director Josh Boone to write and helm “The New Mutants,” TheWrap has learned.

The movie is a stand alone spinoff to exist in the “X-Men” universe.

“We’re so excited to explore this new part of the X-Men universe, and so excited to do it with Josh, who is uniquely suited to tell this story about young characters,” producer Simon Kinberg said in statement. Kinberg will produce alongside Lauren Shuler Donner.

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Knate Gwaltney (who penned Halle Berry‘s forthcoming”Kidnap”) will co-write the script. Boone and Gwaltney are both repped by CAA, and Greg Slewett at Bloom Hergott Diemer Rosenthal LaViolette Feldman Schenkman & Goodman LLP and Darren Trattner at Jackoway Tyerman Wertheimer Austen Mandelbaum Morris & Klein, respectively.

The spinoff has no planned release date. Meanwhile, Fox is preparing “X-Men: Apocalypse,” which is slated for a May 27, 2016 release, starring James McAvoy, Michael Fassbender, Jennifer Lawrence and Nicholas Hoult.