The Dark One is digging its claws deeper into Emma’s soul and one person is not happy about it. Watch a clip from this week’s Once Upon a Time season 5, episode 7.

Killian is ready to sink his hook into the Dark One and pull it out of Emma, but that is not an option on the table. Even with Merlin on their side it seems that around every new corner the heroes are hitting a dead end. So when Merlin offers another proposal that he cannot say for certain will work to help Emma, Hook lets off some of the steam that’s been building inside of him.

Hook watches as Emma slips away. She’s not eating, not sleeping, and is spending her days building dreamcatchers to capture memories. Just like Henry, Hook knows that somewhere deep inside the Emma they love still exists. It is only a matter of finding the right combination of love and trust to coax her back into the light.

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Merlin’s plan in Camelot requires a painful visit with an ancient nemesis responsible for taking away the love of his life. Merlin may know more about what Hook is going through than the pirate is willing to give him credit for.

Adam Horowitz has one final teaser for this Sunday’s episode!

In the meantime, the heroes have their mission in Camelot — divide and conquer. With Emma and Merlin off getting the magic required to unite the blades, it is up to the larger group to get Excalibur from Arthur. Easy, right?

Watch Once Upon a Time season 5, episode 7, “Nimue,” Sunday, November 8 at 8:00 p.m. ET on ABC.