Got this idea from a couple of promo pics and I have changed the story slightly as its SwanQueen. I own nothing of Once sadly. Hope you enjoy and let me know if you want more! I intend this to be a short story with 5 chapters.
Chapter 1
Despite everyone returning to Storybrooke through the portal before it closed, the town was still on edge over their recent newcomer Hades and the return of two familiar faces, Cora and Zelena. As the group was dragged to the underworld thanks to the dark one, the gang then were surprised to find that Rumplestilskin's role was primarily to save the eldest Mills from her current life in limbo due to the unfinished business that were her daughters'. As the Mills were all gradually accepted, there was still the problem that was Hades. Even though Zelena was blinded by true love, the rest of the people had a bad feeling towards the God and did not trust him one bit which was rather worrying when it came down to their safety.
At her girlfriends secret request to protect her sister, Emma slumps back against her wooden chair within the library. Thanks to Belle, the blonde was given the keys for free access to all the books in hope of finding some shady activity linked to the flame haired God. Sighing, the sheriff glances towards the clock as she slams a book shut. It was her day off and yet here she was while the Mayor also sat within her office on business. She just prayed that they will still be able to get out tonight as the brunette seemed rather excited over their well overdue alone time since returning and the fact that their son would be staying with a friend.
"It's hard isn't it?"
Jumping up at recognising the voice, Emma glares over at Hades as the man approaches with purpose.
"Not being able to be with your true love all the time..it's such a shame..something I hope I won't have to experience, if..it all goes to plan" smirking the God then paces in a circle around the wary blonde.
Watching, the sheriff grips her hands into fists to prepare herself for any form of attack. Chuckling, Hades shakes his head. "Really? I'm a god..and well..I neutralised your magic the moment I stepped into this place.."
"What the hell are you really doing here?" Emma questions angrily. "You may fool Zelena but we know that you have something else up your sleeve so what is it?"
Stopping, the God scratches his chin. "hm...see the thing is, my little trip to Storybrooke appears to be coming to an end. Yes, Zelena restarted my heart and that enabled me to travel here but unfortunately it was only a temporary measure. One I didn't know until I felt my heart begin to slow down again"
Crossing her arms, the blonde raises an eyebrow. "So how do you intend to fix it?"
"You"
Frowning, Emma's eyes widen as Hades forces his hand forward into her chest and pulls her heart out sharply. "What are you doing?!"
Hearing the panic in the woman's voice, the God smiles as he rolls the glowing organ between his hands. "I need a heart to keep me alive and this way it's a win win. I kill you, your girlfriend will revert to her old ways like she did with her stable boy leaving Zelena all to me..as for Cora well she won't care so long as her daughter's are unharmed..physically that is. Mentally? Well that's another matter"
Holding her hand out in an attempt to procure some magic, the sheriff exhales deeply through fear as a bolt of energy shoots out, causing her to jolt back.
"I've decided to be kind and allow you an hour to say your goodbyes..I shall meet you at the mayor's office..and if I were you I wouldn't run. Either way you'll die. Either through the candle or I'll simply crush it"
Looking back to Hades, Emma stares at him for a moment before rushing past and running out the door.
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Pushing the mayor's door open, Emma hurries inside just as Regina slams her desk draw shut and looks up to find her girlfriend staring at her with a tear stricken face. Rising quickly and rounding the desk, the brunette takes hold of the blondes hands in concern. "Emma? What is it?!"
Launching herself forward, the sheriff hugs into her as she begins to get upset and decides to come out with it. "Hades has my heart..he's going to to use it to save himself so he can stay here with Zelena..I-"
Dropping her concerned expression to a murderous one, Regina holds onto her tightly before calling out. "Rumplestilskin?!"
Appearing in smoke, the imp looks confused at the pair. "Dearie you haven't summoned me in years.."
"Hades has Emma's heart"
"He's going to use the candle, the one that saved you.." The blonde explains with a sniffle. "He.." Looking back to the mayor, Emma gets teary again. "He's given me an hour to say goodbye then he's coming here..to finish it"
Stroking the younger woman's cheek, Regina kisses her forehead while Rumple frowns more. "But why you?"
"To keep Zelena..he said that if he gets rid of me, Regina will revert back to the Queen and that will leave Zelena for himself. He reckons Cora won't get involved as long as her daughter's are not hurt" the sheriff replies shakily as she feels the brunette's arms tighten around her.
"Not hurt?.." Scoffing, Regina glares angrily.
"Well we have an hour to figure this out.." Rumple announces causing both women to look at him. "Don't look at me like that. We may not always see eye to eye and I may have in the past taken lives myself but they were for my own purpose..in this it's someone else being selfish and truth be told..you don't deserve this"
Surprised, the two women look to one another again before the mayor reluctantly lets go of the blonde to help the imp while Emma makes her way over to the couch in front of the fire place to process all that is happening. Stopping the brunette from reaching her phone, Rumple whispers towards the woman. "Don't. Stay with her..just..just incase this doesn't work out. You don't want her last hour being spent alone watching you research.."
Nodding while growing teary as if realising the seriousness of it all, the former Queen takes a breath. "We need to tell Zelena..she needs to-" hearing Emma double over in pain, Regina rushes over and kneels before the woman as the blonde bends over, clutching her chest. "Emma?! Hey look at me.."
Glancing up with tears rolling down her face, the sheriff painfully blurts out. "He's watching..he doesn't want Zelena to know yet.."
"Okay, we won't.." Sliding up to sit beside the blonde, Regina wraps an arm around her shoulders and guides the younger woman's head to her shoulder as she begins to stroke her blonde locks while Emma begins to relax as the pain subsides.
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Staring over at the clock as she is now curled into Regina's side, Emma bites her lip as her voice breaks. "It's time.." Lifting her head, the blonde leans up and kisses the brunette softly before resting their foreheads together. "Make sure Henry knows I love him. Meet him off the bus when he gets home from school okay?"
Nodding with a lip tremble, Regina then looks across towards her desk sadly as the imp shakes his head having transported all his books from his shop.
"Looks like I've got quite the audience.."
As the trio stand to face Hades, Regina flexes her hand out procuring a fireball angrily while staring coldly at him. "Not so fast.."
Waving his hand with a sigh, the God distinguishes the fireball as he takes the candle from his pocket.
"Hades? What is going on?"
Glancing towards the redhead within the doorway, Hades smiles. "My Zelena.." Holding his hand out, the God smiles more as Zelena accepts with confusion and stands beside him.
"Why did you call me here?" The redhead frowns then offers a smile towards her sister which does not get returned, seeing the two women looking distraught. "Hades?"
"I'm doing this for us my love. If not I have to return to the underworld..I can't leave you alone..not when you have the baby to think of. I needed a heart..and I knew it would destroy you if I took your sisters so I took the next best thing.."
Realising, Zelena looks wide eyed as she looks back to the quiet pair again. "Emma's?..no..Hades..you can't!" Pulling her hand back, the redhead steps away from him.
"Our kiss was only a temporary solution Zelena! We love each other we have to be together.."
"It's got nothing to do with my sister! You're doing it for yourself so you can control her! He wants me to go evil and leave you alone, God knows what he has planned for our mother.." Regina explains desperately before feeling Emma's hand tighten on her arm as Hades squeezes his own hand. "No!"
Reaching across quickly, Zelena takes Hades arm. "Stop! Hades this isn't the way.."
"I'm sorry but I have to..for us" ignoring the redheads plea, the God raises the candle above the glowing organ and whispers the blondes name.
Shuffling nervously on her feet, Emma's lip trembles as the God approaches the two women. Moving in front of the blonde, Regina keeps her arms stretched around the woman. "You're not going anywhere near her.."
Shrugging, Hades disappears in blue flames. Frowning, the brunette looks to her sister briefly before feeling Emma fall against her then drop to the ground revealing the God stood in her place with an empty hand. "Too. Late." Inhaling deeply, Hades smiles to himself as he feels his strength evolve.
Falling down to the blonde, Regina lifts her up carefully in fear then shakes her head as she begins to sob at the lack of movement and seeing no rise of Emma's chest. "No..no..please.." Leaning down to kiss the woman's face, the brunette squeezes her tight as Zelena approaches with a hand to her sister's shoulder while glaring at Hades.
A/N: sorry! :p also Cora will be in the next chapter as it all takes a dramatic turn!