Regina (Lana Parrilla) will force Henry (Jared Gilmore) to give her a key page from the storybook in the next episode of ABC's Once Upon a Time.

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ABC has released a sneak peek for the new episode of Once Upon a Time, called Best Laid Plans. The episode features Regina continuing to be a double agent and pretending she is will the villains now.

Part of this plan is to force Henry to give her an important page of the storybook that will help Mr. Gold (Robert Carlyle) find the Author.

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Regina confronts Henry in the new sneak peek.

"I'm sorry, I didn't want it to come to this," Regina tells her son as Cruella de Vil (Victoria Smurfit) and Maleficent (Kristin Bauer van Straten) walk in behind her.

"I told you I could handle this," Regina says, talking to Cruella and Maleficent.

"We're not sure you have it in you to be true disciplinarian," Cruella replies, before turning to Henry and saying: "I'd say you shouldn't be alarmed, darling, but I'd be lying."

Regina then threatens both of them by saying she will "end" them if they lay a hand on Henry.

"You won't have to do anything as long as he cooperates," Maleficent says.

Regina then pleads to Henry to give her the key page and despite his protests, he ultimately gives in and hands her the page.

"As promised," she tells Cruella and Maleficent. "Now let's find Gold and set this author free."

It remains to be seen if this is even the right page that will help the villains find their happy endings, but Regina is certainly doing a good job of playing both sides so far. However, there are still several more episodes to go and there are plenty of opportunities for her to slip up.

Once Upon a Time airs Sundays at 8 p.m. ET/PT on ABC.

Watch the sneak peek of the next episode of Once Upon a Time here:

Tags: Once Upon A Time television ABC