TVGuide Dec 17: Queens of Darkness

Now that Rumplestiltskin has joined forces with the Queens of Darkness on Once Upon a Time, how will they invade Storybrooke to find The Author? — Erin
“That’s something that will be addressed pretty quickly,” executive producer Adam Horowitz tells TVGuide.com. “It’s going to require some guile on all of their parts.” And just as Regina had a history with Maleficent, we’ll discover that other Storybrooke residents have had run-ins with the Queens in the past. “Snow and Charming had a very interesting period of time with the Queens of Darkness,” executive producer Edward Kitsis adds. “As we always learn on the show, the past will come back to haunt you, and that is no different for Snow and Charming.”

http://www.tvguide.com/News/Mega-Buzz-Gotham-OUAT-Elementary-1090979.aspx