Once Upon a Time Season 3, Episode 7 ("Dark Hallow") will finally return us to Storybrooke, thanks to Ariel's world-hopping mermaid abilities. But what will happen when she shows up in Storybrooke looking for help? We've gathered all of the biggest hints and spoilers about the episode right here, so you can prepare for Sunday's action.

Read spoilers at your own risk! For more on Wetpaint Entertainment's philosophy on spoilers, click here.

The Official Synopsis

We'll start with the official synopsis of the episode, which sheds a little light on what will happen in the town we've left behind for so long.

Mr. Gold and Regina send Ariel back to Storybrooke with an item that will allow Belle to locate a hidden artifact that could help take down Pan. But unbeknownst to them, two men have broken into the town with the intent to stop them — at all costs. Meanwhile, Emma, Neal and Hook attempt to find Dark Hollow, where Peter Pan’s shadow dwells, in order to capture it, and Mary Margaret is upset with David for keeping his poisoning a secret from her.

Sounds exciting! Especially the Dark Hollow, which it looks like they find, based on the promo.

What Happens in Storybrooke?

In a sneak peek that you can watch here, the dwarves contemplate that in the five days the Charmings have been gone, Storybrooke has finally started to calm down. No giants, no wraiths, no deaths. Of course, their peaceful existence is about to be interrupted by Ariel, who emerges out of the water.

Bad news, though: Ariel's arrival is spotted by the two men referenced in the synopsis, and they make it clear that their orders are to never let Ariel get back to Neverland. We're guessing it's one of them holding a gun to Ariel and Belle in the promo.

Are you excited for this episode? Sound off in the comments below!

Catch the next episode of Once Upon a Time on Sunday, November 10 at 8 p.m. ET on ABC.

Rebecca Martin is an Associate Editor at Wetpaint Entertainment and our resident Game of Thrones, Breaking Bad, and genre TV expert. Follow her on Twitter and Google+!


Credit: Celebified Photo: Fifty Shades Of Grey Books Once Upon A Time Actor Jamie Dornan To Replace Charlie Hunnam As Christian Grey!