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Ryan Murphy is on the cover of this week's Entertainment Weekly, and the unbelievably productive TV mogul says he's got no shortage of American Horror Story material. While this season's oft-teased mysterious theme wasn't revealed until premiere night, there's an even sneakier arc in the wings for the anthology series—one that might shake up the whole format.

“It’s my secret season,” Murphy says in an excerpt on EW's site. “I’ve been working with a writer on a season that only he and I know. It’s like a two-year project that we’ll continue to work on the sly and not tell anybody.” Just one writer is penning the entire arc, which has worked wonders for shows like Fargo and True Detective.

American Horror Story's seasons so far have been subtitled Murder House, Asylum, Coven, Freak Show, Hotel and Roanoke. Murphy already has Season 7's theme planned, but for the secret batch, he and his team might just "get them done and shoot them on the sly and drop it."

“I don’t know when it will [air]," he said, "but it’s also an experiment. It’s a different way of doing it. I don’t know if it’s going to work but it’s like, well, let’s try that. We might."

Next, watch actor/filmmaker Rider Strong (Cabin Fever, Girl and Boy Meets World) break down his five favorite horror movies for Fuse: