Summary: Cast into an alternate dimension after a deadly confrontation with Obito, Sakura wakes up to find herself healed in a strange land full of strange people. Accepting refuge from a man named Albus Dumbledore, who has vowed to help her return home, Sakura finds herself stuck in the school which he leads and is quickly integrated with the every-day life there. Despite his constant assurances that all will be well, Sakura soon begins to pick up on the unease that seems to loom over everyone like a shadow, and especially plagued one Harry Potter. Crossover AU. Post manga chapter 647; set during HBP.

A/N: Hey guys! This is my very first crossover fanfic, and of course it had to be Naruto and Harry Potter. I decided to post this since it's my birthday and this little plot bunny has been running rampant through my mind since May, so I decided to hell with it. I'll just post and update as I see fit. I hope you guys enjoy, and please feel free to leave a review.

xx LCF

Convergence

Prologue: The Arrival

The day was overcast and the air thick with moisture and magic. Dark clouds loomed overhead, promising a late summer rain that was bound to please the Giant Squid and the other creatures that inhabited the Black Lake. Contrary to the calm atmosphere outdoors, the inhabitants of Hogwarts School of Witchcraft and Wizardry bustled about the grand castle, preparing themselves for the upcoming school year that was only a few short weeks away.

High in one of the towers, Albus Dumbledore stood at the large window in his office, bespectacled eyes roving over the school grounds with a somber air about him. His blackened hand hung limply by his side; the ferocious nature of the curse as it attempted to overcome Severus' potion caused a constant ache, though today's was far sharper than what he had grown accustomed to–which usually meant that he was due for another dose. One that was a full week earlier than anticipated.

As of late, the curse was spreading at an alarmingly rapid rate.

The old wizard began to turn away from the window to take a seat at his desk, prepared to send for Severus, when a sudden shift in the air stopped him.

Albus halted mid-stride before he turned, acutely aware of the shifting magic that loomed over the Forbidden Forest that should not have occurred with the protective enchantments in place. He himself had reinforced the spells that already guarded the castle and had added a few more of his own, making the grounds near-impenetrable; but it was clear that there was a breach in the wards.

How was this possible?

As he reached the window, Albus caught sight of the dark clouds that suddenly loomed over the grounds like a thick blanket of smoke. Lightning streaked the darkened sky and the wind picked up with enough force to sway even the thickest of branches of the trees that lined the Forbidden Forest. It was obvious that the magic housed within the castle was not pleased at the disturbance. The sight of a dark funnel that began to descend from the heavens was enough to spur him into action; he Disapparated immediately.

He reappeared at the entrance to the Great Hall, startling Minerva as she made her way down the last flight of stairs.

"What is the meaning of this, Albus? You don't think we're being attacked?" she asked, taking hold of the skirts of her robes as they walked out onto the grounds briskly.

"I do not know, Minerva. This is unlike anything I've ever seen–" the rest of his sentence was drowned out by the ear-splitting thunder that cracked in the air just as the dark funnel appeared to have touched down. It seemed that the moment the strange vortex had finally settled on land, that the enchantments of the castle immediately started to fight back. Raw magical energy thrummed around them, mostly concentrated on the dark twister. The deafening roar of the wind made it impossible for him to hear what Minerva tried to shout, and the ground shook fiercely beneath their feet, making it hard for both parties to maintain their footing.

And then, as quickly as it came, it was gone.

The howling winds slowed as the funnel dispersed into nothing, the blackened sky began to lighten with each passing moment until the clouds returned to their normal gray overcast tone. The wind finally halted, and the magic from the enchantments ceased to wreak havoc. He and Minerva shared a brief look of quiet disbelief before their attention was returned to the edge of the forest as they quickly made their way to it. It took them several minutes to locate where the strange vortex of wind and magic had touched down, but once they did it was impossible to miss when they reached the approximated location. After all, a crater with a ten meter radius was bound to garner attention.

"Professors!" Hagrid yelled when he caught sight of them. The half-giant knelt at the base of the crater, his large brown eyes looked up at them imploringly. His clothes were worse for wear; his hair was full of twigs and leaves that had been strewn about from the windstorm, and his face and hands were smeared in dirt. Despite the appearance of the Care of Magical Creatures professor, Dumbledore couldn't ignore the sense of unease that began to fill him when he caught sight of the small figure that Hagrid held securely in his arms. As he approached, Albus realized that the bundle was, in fact, human.

A girl, to be exact.

Minerva's mouth fell open at the sight of the dirt-covered figure that laid limply in Hagrid's arms before her eyes looked up to the point in the sky where the strange funnel of wind and magic had descended. "Impossible." She whispered. "Albus, you don't think–?"

The older wizard gave no indication that he was listening at all to what she said. His bespectacled eyes were transfixed on the girl in Hagrid's arms. "Where did you find her, Hagrid?" he implored quietly.

"Righ' here, where the twister struck, Professor. I was tending some youn' thestrals when the wind came outta nowhere. I though' we were under attack, but when the smoke disappeared all I saw was 'er. She looked so small an' pitiful; an' she's been injured!"

At this Albus' eyes returned to the prone figure in his arms, taking in her appearance and pausing briefly when he caught a glimpse of the severe injury on her abdomen. All trepidation disappeared at the sight, and he immediately turned and walked out of the clearing with Hagrid and Minerva in tow. He flicked his wrist sharply as he silently cast his Patronus and sent it ahead to find Poppy in the infirmary. The Headmaster turned and urged the groundskeeper to pick up the pace. "Come Hagrid," he said as he extended his arm. "It is clear that the girl is in need of immediate medical attention."

The half-giant nodded before taking the old wizard's arm and was immediately transported to the Hospital Wing. Half a second later, Albus returned.

"Minerva," Dumbledore called out as she quickly made her way over to him. "If you would be so kind as to reach Severus and Remus."

The Deputy Headmistress finally seemed to snap out of her thoughts by then as she nodded briskly at Dumbledore's request. Albus caught sight of her wary gaze as her eyes shifted between the castle where the infirmary lay out of sight, and the sky that loomed over the Forbidden Forest. He already knew what she was thinking.

"What of Potter, Albus? Will he still be moved tonight after all?"

Albus stopped and turned to Minerva, a grim look set about him. He let out a tired breath as he looked to her. "Harry will be retrieved despite the… unforeseen happenings of today. I will personally retrieve him and ensure his safe arrival to Molly and Arthur's home. We cannot let what transpired today be known, Minerva. Not when we do not know who she is or why she's here. Aside from Severus, Remus, Poppy, and Hagrid, no one is to know of her existence; not even those in the Order. We must handle the matter with the delicacy needed."

"Of course." The Deputy Headmistress nodded. "I'll Floo them immediately." And with that, Minerva made her way straight to the Headmaster's Office once they passed the threshold into the castle.

Left alone, Albus let out an exhausted breath. And for the first time in a long while, allowed the weariness of his age show openly. Tired blue eyes glanced into the entrance hall through which Minerva just passed moments ago, easily visible through the open doors. This unforeseen circumstance will most likely change many of the plans he had wished to set this year. And he would have to keep a close eye on the girl while remaining extremely vigilant over Harry; all the while still attempt to find the missing Horcruxes and lead a school full of brilliant young minds of the future of the Wizarding world. But first, he needed to find out who this girl was and determine whether she was friend or foe.

Only then would he be able to proceed.