Emma saw Hook holding Henry. He was unconscious and the blade against Henry's neck made it impossible for her to stop the pirate.
"What do you say now love? Drink this and the lad here can live."
"Okay. Don't hurt Henry I will do it. Just set him down," Emma inched closer to Hook. She reached for the bottle next to him. She picked it up and took the cap off.
"Drink up!"
"Set him down first," she commanded.
"Do you think I'm stupid? The second he is down you will magic him away and then I have lost everything."
"Don't you get it. You have already lost. That won't make me love you. That will allow you to control me. That isn't love."
"Don't try to change my mind Swan. Drink the bloody potion and I will free him."
Emma held the potion to her lips, despite the screams of Regina in the background. She turned and looked at her one last time before putting the potion in her mouth. Hook dropped Henry at his feet and Regina magicked him away quickly.
Luckily, Hook was too quick in his release. Emma didn't swallow the potion. She spit in his face and pushed him over the edge. He grabbed her and they went tumbling overboard together.
Emma felt the blade of his knife enter her chest. Then, she was gone. She was in Regina's arms in the guest bedroom.
Robin tried to ignore the pirate, but the thought of being with Regina was just too strong. Before his guard shift ended he needed to ask about this other world. He walked to face the pirate and spoke in a commanding tone, "Tell me about this other world."
Killian's face filled with a grin, "Well you and Regina were in love. You were each other's second chance. The death of Marian and the death of Dan…"
"What about Marian?" Robin interrupted.
"She was dead. Is she not dead here?"
"She disappeared, and I have been looking for her ever since I got word she escaped from the Evil Queen. Regina tried to help but she doesn't remember her."
"Wait did she escape close to the same time snow white did?"
"Yes, but how did you know that?"
"It looks like you're going to help me after all."
"Why would I do that?"
"Because I know where Marian is"
Robin was taken back after the years of dead ends when it came to finding Marian, "What do you want?"
"Get me a box from Regina. It has carving of two birds on the outside. It should be with the rest of her magic. Do it quickly."
"What does this box do?"
"It will help me get Emma and my revenge on Regina and that is all you need to know."
Grumpy showed up for his shift before Robin could ask any more questions. Robin headed straight to the graveyard to find the box inside Regina's crypt.