Emma's gaze was steely as her fist remained poised to strike. "Graham, take a walk."
Graham gave Emma a long look, but he realized that this wasn't about him anymore and was very reluctant to get caught in the crossfire. He released Emma's arm and reentered the mausoleum, intent on resuming his search while his deputy had the mayor occupied.
Regina's firey gaze remained trained on Emma, defiant despite her compromised position. Her voice was sickly sweet. "Ms. Swan, is that really any way to talk to your boss?"
Emma took a step toward the mayor, jaw set. "Cut the crap. No one fucking punches me and gets away with it. Fists up."
"Oh look at you, bristling to defend your honor but unwilling to fight an unready opponent. How noble."
Emma, infuriated, went straight for the low blow. "Remember that first night when I brought Henry back?"
Regina again felt the stab in the gut that Henry's actions had caused. She willed Emma not to say it, not to repeat those words.
Emma smirked maliciously. "I found my real mom!" she quoted.
As Emma leaned closer Regina could feel her breath sweep across her face, smell her bloody lip. She shivered as Emma's cheek came closer to hers, the blonde's lips nearly grazing her ear.
"He doesn't love you." Emma whispered.
Something broke in Regina. She felt her pulse surge, anger burning through her. She wished for magic with which to incinerate the insolent woman. She wished for magic with which to slowly, excruciatingly kill her before bringing her back and killing her again. She wished for magic with which to make her take it back, make her take it the fuck back.
Regina roared as her hands clutched at the slick material of the red jacket before her, her teeth biting down on the ear in her face hard enough to draw blood as she pushed off from the wall to spin around and slam Emma's head into it as hard as she could.

Graham smiled, grinned even. He felt a surge of hope for the first time in so long. With a gleam in his eye he pointed his flashlight into the hollow area under the coffin. With only a hint of trepidation he began his descent.

Emma ignored the pain in her left ear. "Hit the sore spot, did I?"
Regina didn't dignify the provocation with a response and silently aimed another right hook at Emma's head.
With a sickening crunch hand met stone as Emma moved her head just in time to send Regina's fist into the wall of the mausoleum. Regina clutched her broken hand as Emma ducked out of her grasp and grabbed her in a headlock from behind.
Emma yanked as hard as she could, pulling Regina off her feet and dragging her several feet. She paid no attention to the clawing at her arm, shaking the mayor around by her neck like a predator with its prey. She smirked as she caught a raspy plea.
"You'll be good? I kinda fucking doubt that, if Henry's even a little bit right."
She tossed Regina to the grass, where the brunette curled in on herself and gasped for air. Emma aimed a kick at her ribs.
"I gave Henry up so he could have a better life, not so he could live with some psychopathic control freak. If I'd wanted that I'd have shipped him off to his fucking daddy."
With her arms covering her head Regina was still vulnerable to Emma's second kick to her ribs.
"He was supposed to have the parents I never had, not some bitch who uses and abuses him and her fucktoy and the rest of this motherfucking town!"

Graham met the foot of the stairs with a mixture of awe and repulsion as the beam of his flashlight lit row after row of gold boxes. He set his flashlight down on a stair and rushed to the boxes, clawing at them indiscriminately. None of them budged, and despair had begun to wash over him when a meter to his right he heard a click. With a mad grin he moved toward the open box.

Regina sucked in a large breath despite the pain in her chest as she launched herself at whatever part of Emma she could reach, the back of her brain cursing that her combat skill was almost exclusively magical.
As she grabbed at Emma's left leg while the right one was poised to kick she screamed "I love him! I've given him everything he needs, I've cared for him for the past ten years! I am not a bad mother!"
Emma hit the ground with a thump and immediately Regina was atop her, knees pinning her lower half as she repeatedly used open palms to push Emma's shoulders back into the bloody earth as she deputy struggled. "I am not a bad mother! What did I do wrong? What could he possibly want for? I am not a bad mother!"
Emma stilled, momentarily lying prone in the dirt. "Some fucking affection wouldn't be uncalled for."
Regina, forgetting her injury or perhaps disregarding it, brought her fist back in preparation for a punch. Emma used the shift in balance to flip them.

Finally, after so long, Graham held his heart in his hands. He watched in awe as is gently pulsed in his hands, glowing faintly. He gently caressed it, savoring the warmth, the vitality. He could feel it speeding up in his palm as he grew progressively more excited. This was it. He had it back. He would finally be whole again.

Regina supposed this was bound to happen. She was the villain after all, and the villain is always defeated in the end. She couldn't complain really; she'd had twenty-eight whole years of uninterrupted revenge thanks to the curse, and more importantly she had loved a son who had loved her back for a while. She did wish her vanquisher at least had a sword though, after all her power and might being killed bare-handed in a fight with a sheriff's deputy was a little pathetic. She heard her mother's voice in her head telling her that love is weakness but she couldn't bring herself to regret loving Henry as much as she did, even if it ended her. Her last thought before losing consciousness was that she hoped he'd be happy, even if it was with Emma Swan.
Emma's gaze was full of anger and adrenaline as she looked down upon Regina without really seeing her. Her arms twitched, and her mouth contorted into a sort of satisfied grimace as she felt Regina cease to struggle beneath her.
Emma didn't look up as she heard footsteps approaching.
"Emma, Emma I found it! I found it, I'm going to be whole again!
"Emma? Emma what...?
"Emma! EMMA!"
Emma turned her head as Graham grabbed her shoulder.
"I think you've won, deputy."
Emma turned back and for the first time really saw Regina, laying prone in the grass, petechial hemorrhaging in her unseeing eyes. Blood marred her face and matted her hair, stained her blouse, oozed from her mangled hand. Emma could clearly see the purple imprints of her fingers around the mayor's throat.
Silently she stood and stalked out of the cemetery with a slight limp, Graham trailing behind her.