FX is getting a little more literary as a world-famous author, and huge fan of the show, is making a guest appearance on the network’s "Sons of Anarchy," EW.com reports.  

Author Stephen King is set to appear as a quiet loner who will show up in a time of need for Katey Sagal’s character, Gemma.

King’s appearance will be in the third episode of the third season, which is set to premiere in September.