Author's Note: I own neither Tangled nor Avengers nor any part of any version of them. This was just an interesting thought I had to write down. I might add bits onto it if inspiration strikes. I might leave it alone to inspire others to take it where they will. Tho if you are inspired by it please let me know so I can check out what you come up with.

Rapunzel had thought that with the loss of gold from her hair and the outpouring of energy necessary to bring Eugene back to life that the power of the sun had left her. She was wrong. Such power had survived for hundreds of years as a mere flower; to think that it would vanish just from one outlet being cut off was rather naive on her part. One can not fault her for this, she who had been so kept from the world and with the ignorance of her time that there was no way for her to understand the truth of its power within her. It had not only fused with her hair and tears, but her very essence though this she did not discover for some years. Her first inkling something was a bit not right, was when those around her began to develop a little grey along the temple, small wrinkles on the face, and complaints of the body. The natural signs of aging she knew well from her time with Mother Gothel; and yet, she remained unchanged. Eugene was the one to take note first and bring it to her attention. They discussed it at length and researched as much as they could. A sun droplet is a rare thing, this being the only even remotely recorded case and they found themselves sorely lacking in any information that might explain her unceasing youthfulness.

It was on Eugene's second deathbed that the truth of her power showed itself in force once again. He had grown old, for their time at least, and had taken ill slowly. Some strange illness the doctor had no cure for. One that weakened the body as they lost weight, made a persons breathing difficult and wet, and left him in extreme pain. Most recently he had begun to speak nonsense, accusing his caretakers of all manor of crimes and was unable to recognize his own family. It was on one such flight of delusion that Rapunzel found herself holding a Eugene who did not recognize her, crying for her beloved as she cradled him to her in a situation all to similar and different to one that had already played out. Ever so softly she began to sing, not with the intent to heal, simply to comfort. The song may as well have been a part of her, powerless though she thought it to be, it still comforted her in times of stress and sadness.

"Flower gleam and glow, let your power shine

Make the clock reverse, Bring back what once was mine

Heal what has been hurt, Change the fates' design

Save what has been lost, bring back what once was mine…'

"Rapunzel?"

Eugene was young once more. The power had never left her.

They talked it over and decided to leave their kingdom. Their children were grown and while they loved them, they were no longer needed. It had already been decided that with Eugene's death Rapunzel wanted to hand over ruling to their eldest child, Finn. There were already enough questions asked over her eternal youth, this would only add to the rumor mill and unrest if it was discovered. They left to explore the world together and had many adventures and saw many sights. Rapunzel took the time to explore her power and see if she could trigger it from just a touch rather then her tears, and if singing was really necessary or if humming would do.

She and Eugene traveled for some few hundred years together, they did their best to keep tabs on their descendants. None seemed to have inherited the sun's gift. But regular humans aren't meant to live forever, as the years passed by Eugene aged more and more rapidly between healings which as a result also happened more and more frequently. Rapunzel could remember the same happening with Mother Gothel, though from the beginning of her time with her she had needed healing more often then Eugene did when they first set off. She had been using the flower long before it became a part of Rapunzel.

Rapunzel's heart broke for the 3rd time the day he refused to her healing. Even young, he could feel his age and his mind was beginning to slip more and more no matter his youthfulness. It was time for her to let him pass on he told her. With a heavy heart she tended him till his death. She buried his body back in the same area where her tower had been all those years ago.

She traveled the world some more and threw herself into learning the new things that were being discovered everyday. She took a great interest in learning medicine, she wanted to use her gift to help people, but subtly so as to avoid unwanted attention. With the mindset of the general populous she knew it could be dangerous if she was discovered. She would probably be accused of witchcraft and either hanged or burned. She didn't know if such things would kill her, but she was not keen to find out. She had taken great care over the years to keep herself away from dangerous situations. She hadn't always managed to avoid danger and had had her share of injuries, some life-threatening, but she had survived and wanted to continue surviving.

It was a lonely life but not without its rewards. She watched as the world grew and changed around her. Medicine became more and more effective everyday. People lived longer. New technologies were invented to kill ones fellow men. Travel became quicker. Wars broke out. A hero was made from a test-tube. Equality became a right rather then a privilege. An inventor and harbinger of war turned over a new leaf and fought to stop wars. And most recently, as the world came to realize… They were not alone.