American Horror Story: Creator Ryan Murphy confirms plot conspiracies that all season story lines are related

Warning: This article contains spoilers

American Horror Story veteran Sarah Paulson plays conjoined twins Dot and Bette Tattler (Fox)

Speculation over whether the seasons of American Horror Story are totally different stories or are in fact related plot lines have been rife ever since two characters from Asylum showed up in Freak Show.

Pepper (Naomi Grossman) and Sister Mary Eunice (Lily Rabe) both made an appearance in the latest series of the hit FOX horror series, and fans soon began to speculate over how the two story lines could be related.

Ryan Murphy, who co-created the series, has since confirmed that the theorists are correct.

“They're all connected,” he said during an interview with EW.com. “They're all very separate but there's clues every season that we're now telling you how the different worlds are intertwined.”

Some of the theories which have emerged online, he said, are “completely right”.

“That's the fun of the show. Hopefully by the end of the run, be it 10 years or 15 years, people will be able to stand back and be able to say, ‘Oh that was connected to x.’”

“The interesting thing about doing a show like this is every season is incredibly its own story and its own beginning, middle and end. Its own journey,” he continued on the subject of Pepper being the first sign of the interwoven plotlines.

“But we have always from the very beginning in the intertwining mythologies and how things connect. This is the first year where we begin to tell you that season two is connected to season four which is connected to season one... There's definitely a rhyme or a reason and a connectedness to all of these seasons, but in the same way, they're standalones, which is the fun of it. But it is a puzzle.

“And Lily coming back and dealing with Pepper is sort of the first unveiling of that connectedness.”

But that isn’t the only series revelation made in Freak Show thus far, Murphy continued. There’s a “big season five clue” to be found as well, in the top hat and coffee given to Maggie (Emma Roberts) by the police.

He also gave away a major spoiler.

Twisty the Clown and Edward Mordrake’s appearances are not over – despite the former dying in the most recent episode.

“They both make triumphant returns,” Murphy said. “I was shocked to read so many of these 'RIP Twisty' websites and blogs have sprung up. People love Twisty...He will return.”