Disclaimer – I don't own Avatar: the Last Airbender or Harry Potter. This is a sequel to my fic Magic of Air, which is only seven chapters long. The ages of all characters in AtLA are one year less for this crossover.

MAGIC OF WATER: Chapter 1 ~ Watery Rifts

Dumbledore let out a deep sigh, staring out the window of his office, his arms tucked behind his back. He found himself in a dilemma nearly ten years after the event of the Potter's death. Many didn't remember the fact the Potter's had a second child, that Harry had a twin. Everybody simply focused on the child who became a hero, but then again, almost nobody knew there were two children.

"How did this happen?"

He thought he was speaking to nobody, and yet Snape's voice broke the silence. "While you hid Mr. Evan's research in the room of requirement, you didn't expect an inquisitive Ravenclaw to find the research and start delving into it herself. I don't know what is more disappointing, the fact Pandora lived up to the myth by opening up rifts to the other world, or that she left her husband and daughter."

"Is she dead?" Dumbledore turned to the man. "Is that bright mind really dead?"

"From the looks of it, yes. Or at least that is what I could pry out of her. Apparently, her continuation of Mr. Evan's research is now in the ministry of magic. The only reason we know is because the investigation led to that world, and questions are coming up. Including what happened to her, they are now curious to know what happened to Finley."

"Ah. Harry's twin. Time passes differently over there than it does here, so I have no clue if Finley is even alive. There is no possible way that Finley could be alive, as I believe you said it seems like a hundred years has passed."

"Yes, a hundred years has passed roughly." Severus took a deep breath. "I know that the prophesy, the other one that the ministry informed us of said that Finley had a great destiny from where his mother came from, but did you really have to send him back?"

"I did. I don't know how to explain it, but it felt like some kind of spirit was guiding me. There was something special about Harry's twin."

"So in other words both are special in their own way?" Severus took a deep breath. "You're lucky that prophesy is protecting you from litigation regarding Finley."

"I know."

.o0o.

Pandora found the items at a young age. Lily Evans had told her to leave the items alone, and yet she couldn't help but feel drawn, as if a voice was telling her that she needed to do something. Thus, she created her own rift not expecting others between the two worlds to open up. The young witch stepped out into a world of ice, just in time to see a bright light appear in the sky, shooting up high.

And, she heard the voice.

"Thank you for hearing the call. This avatar is not just of one world, but two, and the fate of both hangs in the balance. Had you not opened the rift, then in some time he would have tried again. He's been here before, you know. Voldemort."

"Voldemort is dead though, is he not."

"Voldemort exists as a spirit, and refuses to rest in the spiritual world. He contaminated his spirit by splitting it. He's a cursed one, for killing purposefully, thus rendering his soul asunder. It is a complicated thing. Aang is young, but he needs a guide. You were always attuned to Lily, the child of the traveler, as you to have wind based powers. Your daughters is a tad different, yet undiscovered."

"I miss Lily. She was the only one who seemed to understand. That, and Severus Snape. Nobody understands Severus. Is Lily really dead?"

"I'm sorry dear child, but she has been dead for ten of your years, and a hundred and ten of ours."

"Time passes differently between the two worlds?"

"No more does it. Now that the rifts have been open, time passes the same. This child has a broken heart."

"He does?"

.o0o.

The vision Pandora saw involved a small child, one that looked much like Harry, but instead of green eyes the child had blue. The child was ever so alone, but also arrived in the world a year to the date that the other avatar died. There had been worry that the child would not come, that the cycle had ended. Said child however passed the test, and was taken to the temples to be trained to use wind abilities. They decided to tell him at a young age, because they had a vision, that he was the Avatar.

"The Avatar can have no family."

Aang, as he was known here, broke. He had long wanted to find out who his family was, as there was a missing hole as if there was a missing half, and yet his parents were not there to stop those from the temple from taking him. In truth, chances are Lily wouldn't have stopped them, as the Avatar possession was important. It was a world unto its own, a strange place.

The child decided then to run, hurt that the monks who raised him couldn't be family, and yet they knew something the boy didn't. The Fire Nation was going to wipe out an entire race, his race. He fought through the storm on his strange creature that Pandora had no name for, before he became scared, and froze himself. She then had vision of a girl breaking the ice, heralding the return of the Avatar.

.o0o.

"Why tell me this?"

"You are still connected to the rift, but it is fading. Follow that instinct of yours, the canny knack to understand the unknown. It's a rare gift among you…" The voice began to fade. "…wizards … and … witches."

Pandora took a deep breath, wondering what kind of journey she would be going on, hoping one day to be reunited with her daughter.