Yes, Kara and Kieran will reunite. This is a Supercorp story as much as it is SwanQueen and Rosella. For now, here's more angst and a little surprise.

Saturday morning, Regina was in a world of pain and exhaustion. She buttoned her slacks, pressed the wrinkles from her shirt, and stared at her reflection in the mirror. The truth that Regina had been ignoring for months finally caught up with her the night before. When Killian dragged himself upstairs for bed, Regina gave into the coughing fit that'd been bubbling in her chest since she got home. Regina's phone was in her car and too far away. Using magic wasn't an option, and she wished she hadn't sent Ruby home. Regina somehow made it upstairs to her bed. She fell asleep within seconds. When Regina woke up, she took extra care with her appearance. Once satisfied, Regina touched her chest, listening as her heart slowed. She was running out of time. Of all the things that Regina expected to die from, Cordis Stasis was not one of them.

Some believed Cordis Stasis was a myth, just an old warning about the dangers of a broken heart, but it was real. When Regina had the first tremor, she assumed it was stress. The fifth time it happened, Regina knew. Next came the migraines, and Regina spent those moments locked in her office with the lights off and a cold cloth over her face. After the migraines came the dizzy spells, the nosebleeds, and the memory loss. Regina became an expert at pretending nothing was wrong, but she was at the final moment. Her heart would stop soon, but her magic would keep her alive. It was an odd experience, but the cure was impossible. And if she was never cured, eventually, her magic would give and…

Regina clicked her teeth. She needed to see Rumple, but first…. Regina forced her body to move down the stairs to find Killian eating a bowl of cereal in his "fancy" pajamas. To him, fancy meant something other than boxers and a ratty tank-top.

Killian gave her an odd look and asked, "I thought today was a rest day?"

"I have to see Rumple," she said.

"Everything okay?"

"Yes," she lied, giving him a weak smile. "I just need to give him something to help with a spell."

Killian studied her, and he said, "You're sure?"

"Yes."

"Alright then."

Regina wrapped her arms around him and closed her eyes. Killian had never been anything but himself with her, and she had never been anything but herself with him. Still, Regina couldn't bring herself to tell him the truth. She kissed the side of his head and let her magic curl around her until she was gone.

Regina landed in Rumple's store off-balanced, and she crashed into his shelf. She winced when something fell, but her head kept spinning. Rumple grabbed her by the waist and held her upright as a dizzy spell passed over her. A sharp pain went through her chest, and she willed her body to stay with her for a few more minutes.

Rumple led her to the back and sat her down at his desk. The trip from her home to Rumple's shop took more energy than she expected. Rumple kneeled in front of her, and he frowned.

"You know, don't you?" he asked.

Regina nodded. "I need you to promise me something," she said. "Take care of my family. I know what I am asking of you, but I ask you to please keep them safe."

"Regina-

"Please, Rumple. Don't let her take any more of my family," she interrupted.

Rumple saw the life fading from her eyes, and he wanted to tell her about the portal. He wanted to ask if she got the call, but what was the point? Regina was at the end. Her body slumped forward, and Rumple cupped the back of her head. He hated seeing the woman he mentored, he championed, reduced to a mother with nothing left to give. He owed her more than a promise, but he gave her what she wished.

"I promise."

Rumple ground his teeth when the body in his arms went limp. The other Dark Ones in his head, entities that never shut up, were silent for the first time in decades.

Killian jumped in surprise when Rumple appeared with Regina in his arms. His eyes fell to Regina, and he dropped to his knees. The purplish tint on Regina's skin was familiar. Killian had seen the aftermath of Cordis Stasis during his travels while on the sea, and it was easy to spot once the curse took its course. Killian replayed the interaction with Regina from that morning, and he closed his eyes.

She'd been saying goodbye.

Killian heard Rumple move past him, but he stayed on the floor. He knew he needed to call Ruby, but he couldn't bring himself to move. Cordis Stasis, as curable as it was, often left magical beings in comas for months, years, as the source of their heartbreak was unable to be reversed. And Killian knew if they couldn't find Regina's children in time, there would be no coming back.

Rumple knelt next to Regina by the bed.

"I should have told you, but I was afraid it would not work," he said. "I sent something through a portal a couple of days ago, hoping it would find one of your children, but I was too late. I am sorry, Regina."

Killian scratched the back of his head and looked around the mess. He couldn't find Regina's phone to call Ruby. Killian didn't want to go to the diner with all the people. He searched the kitchen, the living room, the study, and nothing. Killian turned around as Rumple came downstairs. As much as he disliked the man, he brought Regina home.

"Did you see a phone up there?" Killian asked.

"A phone?"

"Regina's phone is missing. I need to call Ruby, but I cannot find her phone anywhere down here. I would use mine, but I dropped it in the sink, and it's not working."

"How long has Regina not had her phone?"

"I don't know! Did you see it or not?" Killian huffed.

Rumple had an odd look on his face, and he said, "No."

"Damnit. I don't want to go to the- oh, wait! The car. She always leaves it in the cupholder."

Killian ran out of the room into the garage, unaware that Rumple followed him. Killian opened the car door and grabbed the phone from the cup holder, frowning when he saw the blinking notifications on the screen.

"Where the hell is National City?" Killian grumbled.

Rumple plucked the phone from his grip and stared at the number. He frowned and said, "Do you know how to unlock it?"

"Yeah?"

"Do it. And play that voicemail."

"What? Why?"

"I know we do not get along, but I need you to trust me and play that voicemail."

Killian unlocked the phone and pressed play. It was nothing but static for the most part until they heard-

"Mom, it's me, Kieran."

Killian leaned on the island and said, "You never told her."

Rumple rubbed his temples in frustration. Had Regina just – he huffed and said, "I didn't know if it would work, and I didn't want her hopes up."

"But you found them?"

"In theory, yes. I used the magical residue left in the handprints from the journal Regina gave me. It was a leap of faith that was clearly too late."

Killian lifted his head and asked, "Hold on, do you still have the bean you used for Kieran?"

"Yes, but I am not sure I can use it again. The portal was already unstable when I used it the first time."

"What about the second one? Do you think it will work?"

"I believe so?"

"Okay, if the broken heart curse is cured when the source of trauma is reversed, then all we would have to do is reunite Regina with her children, correct?"

"Yes, but I cannot promise-

"Listen to me, I never told Regina because there was no specific realm for us to search, and the power source can only sustain maybe one or two trips, but I have a dragon's eye."

"How on Earth did you get a dragon's eye?"

"I stole it," Killian deadpanned. "But that's not the point. If we can find a way to combine the magic from your bean with the stone, we-

"-can sustain a portal long enough to have direct contact," Rumple finished. "But we're going to need help."

Ruby paced the empty diner with her hands on her hips. Granny left to sit with Regina, leaving her granddaughter and Killian alone with Rumple to figure out a game plan. They'd been going back and forth on the best course of action for hours. It was one thing to open the portal, but it'd been decades. They had no idea where the portal would open, as it wasn't as specific as Rumple wanted it to be. Finding the girls after wouldn't be as easy as they wanted it to be, and they were running on a short timeline.

"So, Regina's known for months that she had the broken heart curse and didn't say anything, so now the only way to cure her would be to reverse what Snow did?"

"Yes," Killian said.

"And we have to use the bean Rumple's been working on in secret and some stone to power a portal strong enough to get us to wherever Isabella is and bring her back here? Not to mention we have to find Emmett and re-establish contact with Kieran?"

"We've been through this, Ruby," Killian huffed. "Our issue is figuring out who we send to get her."

"Me," Ruby said. "She knows me, and I can get her here."

"No chance. If you get stuck there, Granny will kill us. I'll do it."

"You can't even last during a trip to Target," Ruby argued.

"Well, if we can't send Rumple, we can't send you, and I can't go, who-

Killian and Ruby glanced at the door as Emma walked into the diner. Her eyes were bloodshot, and she went up to Killian. She punched him in the jaw, and Killian fell into the bar. Emma turned on Ruby, who flinched.

"I asked you if you heard from her two hours ago!" Emma shouted.

"Em-

"I had to find out from Granny seven hours after the fact that Regina was essentially in a coma!"

"We didn't think-

"You didn't fucking think that I would care to know that?"

Ruby's face twisted in guilt, and Killian rubbed his jaw, bowing his head. Emma turned to Rumple.

"I want in on whatever you're planning," she said.

"We're opening a portal to Isabella," he explained. "But we don't know where it will open or if it will stay open long enough for us to make it back before it closes."

"Whoever goes through could get stuck in that realm," Killian added in a low voice.

"I'll do it."

"No, Emma-

"Shut up, Ruby." Ruby flinched, and Emma exhaled and pinched the bridge of her nose. "I'm sorry. I just- I'm the only one here who can survive in another realm. My absence can be explained as Savior business. So I'm going."

"You'll need to change," Rumple said. "Something from the Old World."

"I have something on the ship she can wear," Killian said.

"Then it's settled."

Emma adjusted the tunic. It was black, obviously, and made of leather. She had her gun tucked safely in her waistband, and she stared unimpressed at the glowing rock Killian called the dragon's eye.

"Are you ready, Savior?" Rumple asked.

"Yes."

Rumple placed the bean on the dragon's eye, and he poured fairy water over it. The four of them shielded their face as the portal swirled to life in a bright swirl of green and white. Emma rubbed her hands on her pants.

"I cannot promise more than fifteen minutes," Rumple said. "When it closes, it closes."

"Got it."

Emma exhaled, and then she threw herself into the portal. Her body twisted and curled in on itself, and she finally landed in someone's living room. She squinted at the sudden change of light, the spots in her eyes causing her to feel dizzy, but she froze when something cold pressed against her temple. Emma held up her hands at the familiar sound of a gun cocking.

"Wait! My name is Emma Swan. I was born in the Enchanted Forest, technically. And I am here on behalf of her Majesty looking for Princess Isabella."

A pair of boots appeared in her vision, and Emma looked up to find a brunette with long hair and a Regina-like look in her eyes.

"What do you mean, technically?"

"That is a long story."

"My experience with portals is that they do not stay open for long, so I recommend you make it short. And I sincerely hope you tell the truth," Isabella said. "Because I have had a long day, and I am in no mood for games."

Emma swallowed at the literal fire burning in Isabella's eyes.

Shit.