Once Upon a Time Season 4 Episode 4 Teaser: A Deal with the Dark One

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On Once Upon a Time Season 4 Episode 3, Elizabeth Mitchell made a spell-binding debut as The Snow Queen.

Next Sunday, meanwhile, on Once Upon a Time Season 4 Episode 4, viewers will be reminded that magic always comes with a price after Hook visits Mr. Gold and asks for a favorite.

Elsewhere, fans can look for Henry and Mary Margaret to offer Regina some hope when she grows frustrated over not being able to find a cure to save a frozen Marian, while Will Scarlet tries to break into the Storybrooke library to find a special book. 

What will Rumplestiltskin be up to in Fairy Tale Land? How will he be interacting with Anna and what kind of ominous warning will he issue her?

Check out the official ABC teaser above and prepare for "The Apprentice" to air on Sunday, October 19 at 8/7c.

And remember: any time you need to catch up, you can watch Once Upon a Time online via TV Fanatic.

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.

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Once Upon a Time Season 4 Episode 4 Quotes

Emma: I know how to plan a date.
Hook: You know how to chase a monster. I know how to plan an evening out.

I should have known you'd be old fashioned given your age. What are you like 300?

Emma