Disclaimer: I don't own Once Upon a Time.

AN: This is another one of mine. I'm not even sure where this one came from. I kept wondering what a doctor's reaction would be to Snow and Charming sharing a heart. Then I kept thinking about how Jekyll was the real villain and maybe he might have mentioned how fascinating their split heart was in a creepy sort of way. So Snow's imagination gets the better of her and she has a nightmare about it. It's post 6x4, Jekyll and Hyde are dead.

Once Upon a Snowing

The Real Monster

Snow gently put Neal down in his crib, after kissing his little head. Charming, Emma, Henry, and Killian were all watching a movie. And watching the four of them watch a movie was more entertaining than the actual movie in her opinion. It had been another interesting day. Only in Storybrooke could Dr. Jekyll turn out to be the monster, though Hyde was definitely no angel. She hadn't mentioned it to anyone but David, but Jekyll had creeped her out from the beginning. Maybe it was the monster lingering beneath his skin that she sensed or maybe he just reminded her too much of Whale.

So when Emma and Charming had decided to watch an old Dr. Jekyll and Mr. Hyde horror film for kicks, she had rolled her eyes. They always had very similar taste in movies and she swore one of these nights, she was going to pick the movie with no arguments from her family. Still, she never missed an opportunity to cuddle with her husband and gladly slipped back into his arms on the loveseat, darn near sitting in his lap. Emma playfully rolled her eyes at them. She was used to the need they always had to be close and only pretended to be annoyed.

The movie ended and Emma turned the set off.

"Where do these filmmakers get these ideas? Those fellows were nothing like the late Dr. and his other half," Killian commented. Emma shrugged.

"All writers have their interpretations, I guess, right kid?" Emma asked, Henry nodded.

"Fortunately for us, I'm only interested in recording the real stories," Henry said. Authors...that was another sore subject with her. She was glad that her grandson had the job now. He would do it justice, unlike the last author who had tried to ruin their lives.

"I still think it was a little insensitive to watch this tonight. They just died," Snow commented. David and Emma shrugged and she rolled her eyes. Like father, like daughter.

"I guess I'm not really surprised that Jekyll turned out to be the monster," Emma said. Snow cocked her head to the side.

"Really? I mean, he was odd, I'll give you that. But I never thought he'd try to go after Belle like he did," Snow replied.

"Maybe not...but I got the creepy vibe from him. You weren't there for that lovely tidbit," Emma said.

"What tidbit?" she asked.

"Well, I didn't hear it, but apparently Leroy and Doc got all kinds of questions from him about you two," Emma explained.

"Us?" David asked in confusion.

"Yeah, apparently he was fascinated was the word used about your split heart. If Leroy isn't stretching the truth, he even asked Whale if he could see your chest x-rays," Emma said.

"Oh my God…" Snow cried in aghast.

"I told you it was creepy. Leroy said he was going on about studying quote "such fascinating medical impossibilities." Emma said.

"Well, on that note, I think we should call it a night," David said. They agreed. It was getting late and everyone still had to get up early the next morning.

Once Emma, Killian, and Henry had gone, they proceeded to get ready for bed. They checked on Neal together, smiling down at him sleeping in his crib and got into bed.

"Good night...I love you," Snow said, as she cuddled close to him. He smiled and kissed her softly.

"I love you too. And hey, our heart...that's between us. No one else," he reminded. She nodded, though she was considering punching Whale in the face for even telling Jekyll about it.

Snow felt cold and the air smelled sterile, like rubbing alcohol. Her green eyes snapped open and darted around the stark, white room she was in. She tried moving her arms, but was alarmed to find that they were strapped down.

"Charming!" she called.

"I'm here Snow," he called back. She turned her head and found him next to her, but also strapped down, though he struggled to get free.

"Charming...what's going on?" she asked frantically.

"An excellent question, dear Snow White," a voice answered, as Jekyll waltzed into the room.

"Let us go, Jekyll!" David growled.

"In time, my good man. As a doctor, I simply must study this fantastical occurrence," he said, as he put the stethoscope to Snow's heart, even as David still struggled with his bonds.

"Curious...curious indeed. To a trained physician, it sounds like a normal heart," he said.

"That's because it functions like one too. There's nothing to study so you should let us go," Snow pleaded.

"Oh no my dear...you and your husband are far from ordinary. Even as a scientist, I can appreciate the poetic value. Two lives, one heart...literally. The stuff of fairy tales...you might say. Excuse the pun," he joked.

"Look Jekyll...the heart split, it's magic. It's not science...there's nothing to study," David protested.

"Oh, on the contrary mate. Magic and science are very similar, you might say. Many things that were once thought only to be magic have in fact been replicated by science," he explained.

"Not this...there is no replicating this without magic. You can't hold us here against our will!" David spat.

"Alas...it is unfortunate that you're not willing to participate in greatness. However, scientific advances were not made without sacrifice," Jekyll lamented.

"You 're the monster...you are the real monster!" Snow cried, as Dr. Whale waltzed in.

"Whale...tell your crazy friend to let us go!" David pleaded.

"Normally I would...but I'm afraid I'm a bit curious myself. I didn't get the reputation as Dr. Frankenstein by playing it safe," Whale said, as they started to wheel David away.

"Where are you taking him? Where are you taking my husband?!" she screamed.

"To the operating room, of course. Time to see how this little half heart works," Jekyll stated.

"No...NO PLEASE! PLEASE DON'T TAKE HIM!" Snow screamed.

"I love you, Snow!" Charming called.

"CHARMING!" she she screamed.

"Charming…" she cried in her sleep, as he shook her.

"Snow...Snow wake up," he pleaded, as she her eyes shot open and she looked around.

"Charming…" she breathed, as she started to relax.

"You were having a nightmare," he said, as he held her.

"I'm sorry...I didn't wake Neal, did I?" she asked. He smiled gently.

"No...and you have nothing to be sorry for. You want to talk about it?" he asked.

"Mmm...it was pretty messed up," she hummed.

"Nightmares usually are. Maybe Em and I shouldn't have picked horror for our movie genre tonight," he said.

"It wasn't the movie...just the real stuff. Jekyll was the monster and he wanted to cut us open to see how our half hearts worked," she explained.

"Yeah, that's pretty creepy. No wonder you woke up screaming. But he's gone, Snow. Him and his messed up other half," he assured. She nodded and cuddled against him.

"I still get to pick the movie on the next movie night," she said. He chuckled and kissed her hair.

"Anything you want, my darling," he replied, as she was able to drift back into a dreamless sleep in her husband's arms.