The year 2010 was drawing to a close.
The world was at peace that had settled over the planet like a fresh blanket of snow, covering the jagged scars of a world she no longer recognized.
From her favorite chair in the sunlit living room of their quiet Virginia home, Peggy Carter watched this new world unfold on the television screen.
She saw the confident face of Chancellor Deven Ray, a man who spoke of global unity with a sincerity she hadn't seen in a politician since FDR.
She saw the optimistic architecture of Stark towers, a legacy so different from the one Howard had left behind.
She saw a world without SHIELD, without HYDRA, without the constant dread of the Cold War's shadow.
There were no more secret battles to fight, no more reports to file, no more enemies lurking in the dark.
The world had been saved by a new generation.
Her life's work was complete, a chapter in a history book that had already been closed. And with the end of that long, long war, she could feel her own body finally surrendering to the pull of time.
Her husband, Steve, was in the kitchen, humming a tune from the 40s as he made them tea.
He was an old man now, his once golden hair a snowy white, his powerful frame stooped with the gentle weight of a life fully lived.
But his eyes... his eyes were the same familiar blue that had captivated her in a smoky London pub all those years ago.
He brought her a cup of tea, his wrinkled hand steady as he placed it on the small table beside her.
He settled into the armchair opposite her. They sat like that for a long time.
"Penny for your thoughts?" he asked.
A faint smile touched Peggy's lips.
"Just thinking," she said. "About the world... it's so different now."
"It's better," Steve said.
"Yes," she agreed.
The knowledge that the world was truly safe, that a stable peace had finally been achieved, had been a balm to her weary soul.
It was this sense of a mission finally accomplished, that was allowing her to let go.
But as the days grew shorter and her own strength waned, the regrets of a long and complicated life, began to visit her more frequently in the quiet hours of the night.
Later that evening, as Steve helped her into her medical bed, she looked at his face, the face she had loved for over fifty years, and saw, for a fleeting moment, the face of the young man she had lost.
The young man she had promised a dance.
"I was selfish, wasn't I?" she whispered.
Steve paused, his hand still on her shoulder. "What are you talking about, Peg?"
"My Steve," she said. "He's still in the ice, isn't he? I could have... we could have looked for him. We had the resources. But I never had the courage."
The man standing beside her, the man from another universe, sat down on the edge of her bed.
He knew this conversation. They had had versions of it before, in the dead of night, over decades.
He had told her everything, years ago, after she, the sharpest agent in the world, had begun to notice the impossible inconsistencies in his memories of a world she had also lived.
He had told her about his universe. He told her about the Avengers, about Loki and Ultron, about the Snap.
And he told her about his final choice, to return the stones and find his way to a life with her, only to land in a reality that was not his own.
"You weren't selfish, Peg," he said.
But the guilt was a stubborn thing.
"I promised him a dance," she whispered, a single tear tracing a path down her wrinkled cheek. "And I let him sleep in the cold, all alone, for all these years. Because I was afraid. Afraid of what I would feel if I saw him again. Afraid it would break the life we built."
She loved the man beside her with every fiber of her being. He was her husband, her partner.
They had built a beautiful life together, a life she had never thought possible.
But the love she felt for him was a second love, grown over fifty years of shared mornings and quiet evenings. It was a deep and abiding comfort.
The love she had felt for her Steve, the skinny kid from Brooklyn, had been different.
It was all consuming passion that had been forged in the crucible of war and snatched away in a heartbeat.
The two loves existed side by side in her heart, and she had never, not once, been able to fully reconcile them.
She loved the man her Steve had become in this chair, and she ached for the boy she had lost in the ice.
"He's not your Steve," she murmured. "He's just... a boy. And I left him there."
Steve's heart ached for her. He knew this was her deepest regret, the one wound that had never truly healed.
"He would have understood, Peggy," he said softly. "He would have wanted you to be happy."
"Howard," she whispered. "And Maria."
Steve's hand tightened on hers. He had told her that story, too.
The story from his world, where the Winter Soldier, his Bucky, had murdered them on a lonely road.
He had also told her that, in this different timeline, there was a good chance that their fate was still waiting for them.
The butterfly effect was an unpredictable thing. Aryan Spencer's rise and SHIELD's fall had changed the world, but had it changed that one, dark night?
"I wanted to warn them," she said. "I knew what might happen. I knew Bucky was out there. I could have told Howard. I could have put a guard on them. But you... you told me we couldn't. That changing would have consequences we couldn't predict."
"I know," he said, the memory of his own struggles with the burden of knowledge, still a fresh pain. "Intervening in... it could have made things worse."
"I know," she sighed. "The logic of it. The soldier in me understands. But the friend... the friend feels like a coward."
Howard, for all his flaws, had been her friend. One of the few she had left from that long ago war.
The thought that she had let him and his wife drive to their deaths, armed with a knowledge she couldn't share, was a regret that sat like a stone in her chest.
She lay back against the pillows.
The room was filled with the ghosts of choices made and not made. The ghost of a boy in the ice. The ghosts of her friends on a dark road.
And the ghost of her own heart, a heart that had been forced to love two men at once.
She had lived a remarkable life. She had co-founded the world's greatest intelligence agency, only to watch it rot from within as men she distrusted, like Alexander Pierce, slowly pushed her and her faction out.
She had aged, she had grown tired, and she had finally given up the fight, retreating into the happy life her Steve had given her.
And then, this young man, Aryan Spencer, appeared. He had done in a year what she had failed to do in fifty.
He had ripped out HYDRA. He had dismantled the corrupt and compromised shell of SHIELD.
He had built something better, in its place. He had even healed Bucky Barnes, a feat she had thought impossible. He had won her war for her.
It should have been a relief. And it was. But it was also a final admission of her own failure.
Her life's work had been a drawn out defeat, a slow retreat against an enemy she could never quite vanquish. His had been a lightning victory.
Her thoughts began to drift, the edges of the room growing soft and hazy.
She felt Steve's hand in hers, a solid anchor in the swirling sea of her memories.
She saw a flash of a dance hall. Laughter, music, the scratchy wool of a uniform under her fingertips.
A promise. Next Saturday, at the Stork Club.
She saw Howard's grin as he unveiled some new invention.
Her life had not been the one she had planned.
It had been a beautiful tapestry of love found, love lost, and love rediscovered in a different form.
It had been a life of regrets, of compromises, of secrets she had to keep even from herself.
She had never truly understood her own feelings, this impossible balancing act in her heart.
She loved the man who had spent a lifetime with her, and she had never stopped loving the boy who had made her a promise.
But as the darkness began to close in, a thought rose above the regrets.
She had been loved. By the best man she had ever known, in two different worlds.
A peaceful smile touched her lips. She squeezed his hand one last time. And then, Peggy Carter let go.