Old enemies
A guest asked for a oneshot of Henry and Hook summoning Emma with the dagger. She appears and is mostly herself but with the memories and knowledge of all the previous Dark Ones. She remembers Hook's history with the Dark One and thinks he's going to kill her and is more upset because Henry is with him. The pair comfort her and help her see that isn't what's happening at all.
"Are you ready for this lad?" Hook asked, holding the dagger aloft. Henry nodded, trying to hide how intimidated and frightened he felt. "Lad…you know she's likely not to be herself? She could be violent. If she is, you know I'll have to command her away with the dagger because she wouldn't want to hurt you."
"Or you." Henry added. "And I know, I understand. I'm not a little kid, I can handle this. I need to see her, and I know you do too." Killian nodded at the lad, impressed by his bravery. He turned his attention back to the dagger he was pointing in the air.
"Very well. Dark One," He said shakily "I summon thee." There was a roll of thunder and a single strike of lightening. When the flash dulled, Emma was standing there, alone. She was dressed in a black almost feathery getup. Her skin was much paler than it had been, and her lips a deeper shade of red. Her hair had gone from blond to white.
"You summoned me." She said quietly. Hook and Henry just stared for a moment. They hadn't expected such a drastic physical change. Emma stayed rooted to the spot, unable to move as she was under the dagger's control.
"Emma, do you know who we are, love?" Hook asked tenderly. Emma peered closer at the pair.
"Yes." She said simply. "You are Henry Mills, my son. And you are Killian Jones, but you are known by many as Captain Hook." Emma's eyes widened in horror as she had one of the many brain flashes she'd experienced since her transformation. She seemed to be able to pick out moments from the previous Dark Ones. Her first being Zoso's final words:
"All magic comes with a price…and now, it's yours to pay." But now, it was one of Rumplestiltskin's moments. Emma was seeing the hatred Hook had for the Dark One, the bloodlust he had for them, and by extension, her.
"You want to kill me!" Emma exclaimed, the fear clear in her eyes. "And you brought my son? Why?"
"What?" Hook asked, both confused and hurt that Emma would think that of him. "No! Emma, love, nobody's going to so much as hurt you.
"You're lying. I saw you with the old Dark One. You wanted to kill the Dark One so you must want to kill me."
"Mom, I promise, he isn't going to kill you." Henry piped up. He took the dagger from Hook and held it out to Emma. "Here, we don't want to control you, take it." Emma's gaze shifted to Hook, still feeling edgy. But something told her she could trust him. She slowly edged forward and took the dagger from Henry, tucking it away under her dress. She looked at the pair, seeking help from her prison of darkness. They seemed to understand, and pulled her into a joint embrace. The only comfort they could offer her right now.