This is my first crossover and well I tried to be original. I read a couple of Harry Potter/Naruto crossovers but they all had the shinobis go to Hogwarts as a mission, so I tried to write something different than that. Anyway updates will be slow because I want to make long chapters, well as long as I can. But I have already how the story will turn out. Anyway review please!!!

Disclaimer: I don't own Naruto and I don't own Harry Potter, they belong to Masashi Kishimoto and J.K. Rowling.

Through the passage of the worlds

Seeking Haven

They were on their way home from a difficult mission. All four of them were broken, bruised and hurt in various places on their bodies. They needed a shelter, and they needed it fast. Sakura and Sai weren't injured as badly as Sasuke and Naruto, but they were still hurt. Naruto's head was badly injured and wouldn't stop bleeding; he must have had a couple of broken ribs as well. Sasuke on the other hand, had a deep gash at his left side, and he was limping as well. Sakura's and Sai's wounds weren't that significant, but they slowed them down. She wanted to heal them, since she was the team's medic, but that wasn't an option in the open. Even though it was the beginning of the summer it looked like it was going to rain and it was beginning to get dark. Soon the summer rain was falling heavily above their heads. Things didn't look too well.

Sai spotted a cave and motioned to the rest of his teammates to follow him. They reached the entrance of the cave and rested their tired bodies against the filthy walls. The cave wasn't very big but it had enough space to fit them and it looked comfortable for the time being. They soon settled themselves to rest. Sai lit a small fire and soon the room was covered in a faint orange light. The shinobi now noticed that there was something unnatural about this cave. Across the room there were strange markings. They looked like they belonged to a strange language, and the shinobi couldn't understand what they meant. These markings were everywhere. On the walls, on the roof even the floor. They inspected them closely but soon they forgot everything about them, since the need to heal and rest their bodies was much more important for them at the moment.

Sakura immediately got to work and checked Naruto first, since he was in the worst condition and began healing his most crucial wounds, he was losing his consciousness despite his amazing self-healing abilities. Sai was next and the last one was Sasuke, whose body was in much pain and he needed to calm down before Sakura could start her work. In the end, Sakura with the help of Sai healed her own wounds and shortly after she fell to the floor tired and drained of chakra. Now her shirt was ripped at different places, covered in blood, not only hers, and the fact that she was cold wasn't helping her body either. They were all in an awful condition and Sakura fell asleep soon after her job was finished. One by one, the rest of the team fell asleep as well. Not one of them noticed that night the strange azure light emitting from the markings that covered the room during the night, nor the eerie aura that surrounded. Sakura shivered in her sleep when she felt a spine-chilling breeze on her skin and Sasuke stirred in his sleep seeking more warmth. The fire faded from the sudden small wind and temperature inside the cave fell significantly.

A few hours later, and Sai was the first to wake up. Something was strange. Immediately his eyes scanned his surroundings. The light was bright indicating that the morning had arrived, and the birds were singing their personal tunes and melodies. But that wasn't the problem. There was nothing wrong with that. The problem was the view from the cave, which was different, very different than the view from last night. When they entered the cave last night there wasn't a creek a few feet away from the cave, the trees weren't the same type, and even the cave was smaller. But markings were all around him, similar if not identical from the markings from last night. Something wasn't right. He noticed Sakura waking up and rushed to her side. She hadn't noticed the strange things at the scenery yet.

Sakura blinked in confusion while watching Sai approaching her without the infamous fake smile on his features and scowled with the reminder of it. Sakura hated that smile. But then another thought came to her head waking her from her musings. If Sai wasn't smiling with that detested smile of his, then something was up. He motioned his head to the walls and the entrance of the cave showing her the changes around them. She then noticed the same strange things around her and looked at Sai searching for an answer for her unspoken question. He just sat next to her, leaning against the wall and trying to understand what was going on. Unfortunately his wound reopened from all the movements he made. Sakura rapped bandages around his waist to stop the bleeding. She didn't have enough chakra to heal him properly yet.

A few moments later the other dark-haired member of the team woke up and noticed immediately the differences from last night. He looked at Naruto who was sleeping while cuddling his backpack and smiling stupidly, probably at some dream that included ramen. He relaxed that his rival-turned-enemy-turned-best friend, was out of grave danger. As he looked at the duo across the wall he voiced his thoughts confused.

"Sai, Sakura do you have any idea of what is going on?" He waited for an answer, switching his gaze from Sai to Sakura and vice versa.

It was Sai that answered.

"We have no idea..." and he gave his trademark smile to the Uchiha heir, earning another scowl from the only female member of the team.

They fell silent for a while trying to think of something. Five minutes later Sakura stood up and spoke her mind, with determination visible in her eyes

"I'm going to search for a clue or something outside. Don't follow you're all messed up and we might get lost from each other. So one person lost is better than three." She added after she saw the expressions of disapprove from their faces.

"But you haven't recovered yet, and your clothes are a mess." Sasuke stated calmly. Even though he wasn't that calm inside. And after the years he spent with Orochimaru he had became a little more paranoid than normal people were.

"I'm in a much better condition than you two and Naruto won't wake up until noon, so I'm going." She closed her lips firmly and fixed them with a glare, showing to the two men that she wouldn't take "no" for an answer. And she didn't.

Even though Sai didn't show it, he didn't want Sakura to go all alone scouting in foreign territory. He still proclaimed to be emotionless, but he couldn't fool his teammates, and Sakura was the best at reading him. They have gotten a lot closer during the years they spent together and he grew a little overprotective towards her, in a brotherly way. He sighed in defeat. He knew she was right. In order to find out what had happened to them someone should scout the area and Sakura was the only one that could do it, at least she wasn't as badly injured as they were.

Sasuke was thinking among the same lines as Sai. He made up his mind and decided to let her go. He took a blue shirt from his backpack with a high collar and the Uchiha family symbol on its back, and handed it over to Sakura to wear it. She accepted it with a smile, and took a few kunai knives and shuriken with her for extra safety.

Sakura took off strolling, she could go really fast but the situation and her body demanded a slow pace, and decided that it was better for her to walk instead of running. If this was a normal mission she would be half way through the forest in five minutes, unfortunately she was still tired and her chakra was still low from all the healing she performed the previous night. Fear, she was overwhelmed from it. She wanted to go outside because she was scared, from many things. Waking up at an unknown place was one of them. The moment Sakura stepped out, she half smiled and half frowned, she masked her heart's content so well from her teammates. She was always told that she was weak because she couldn't hide her feelings, her emotions. Her feelings would be her doom, if she chose the path of a kunoichi; she heard that phrase all the time when she was young. Young and naive. She proved them wrong. A smile made its way on her face with her last thought and her she gained more confidence and strength on her pace.

She noticed that she was still in a forest but the climate was very different than the one in Konoha. It was cooler and she guessed that she must be somewhere in the north. The forest was different too. It wasn't as thick as the one at home, but the trees were taller and narrower. This forest was more beautiful. The sun was illuminating it with a faint light, giving to the leaves around her an emerald and golden glow. Sakura decided that this forest looked as if it came straight from the stories she used to read when she was still a child. Stories about elves, maidens, dragons and other majestic creatures, she smiled remembering the western fairy tales she used to adore. She was so mesmerized from the forest's beauty that she didn't notice that she was following the creek.

She was walking for a couple of hours and soon she begun to see the entrance of the forest but at the same time her strength begun to fade. She decided to rest for a while. She sat comfortably between a tree's roots to recover herself. Time flew and she was on the road again. Finally she exited the forest and she caught the sight of a weird house in the distance. She decided to go there, act as a lost girl and ask for food for her and her friends, if they were friendly. In the case that the people living there were hostile she would hide herself, steal something to eat if possible and go back as fast as she could. If she could, she corrected herself.

The house was getting clearer in view as she approached it, but apparently her vision was getting blurry as well. She scowled. Just a few feet and she were there. She was sweating more and she found breathing harder and harder by the minute. Now she was limping and her knees begun to shake. Almost there, she pushed herself mentally and physically. She reached a trembling hand at the small crooked door that led to the garden of the lone house. She couldn't stand anymore. Her knees couldn't hold her weight. Not now, I'm almost there. Sakura thought desperately, trying to cling to consciousness. She tried to grasp the door for support but to no success. Sakura fell to the ground with a hollow sound, and the last thing she heard was the sound of two pairs of footsteps rushing to where she was. And then everything turned black.

While Sakura was gone, Sasuke and Sai were sitting in the cave with nothing to do. They both hated the fact that Sakura was alone in unfamiliar territory and they couldn't do anything if she was in trouble. They both hated not knowing. They would never admit it but they were worried for her safety. Naruto was still asleep. Actually he woke up thirty minutes ago realized that there was nothing eatable, mumbled something including the words "prefer" "dream" and "ramen" and fell back to sleep like nothing had happened, while cuddling at his backpack once more and drooling from the right corner of his mouth.

Sasuke and Sai had the same thought. How idiot their friend looked. But they smiled nonetheless. It was Sai that spoke what crossed their minds.

"He's getting more stupid as he's getting older."

Sasuke smirked in return, showing his agreement to the previous statement. Sai got up and excused himself, saying that he was going outside to keep watch just for a precaution. Sasuke was left alone in the cave lost in his own thoughts.

His mind traveled to the moment he saw his best friend again after many years, and because of the cheerful blond boy his life took another turn. It was only six months ago that he was redeemed of his crimes and was declared innocent. A sad smile graced his lips as he remembered how it all happened. After Orochimaru's death he was wandering alone searching for his brother. But to no avail. There was no sign of him or his whereabouts. One day his path brought him to a fighting Naruto. Naruto was fighting against twenty rouge-nins and was losing, he was fighting for what seemed to be hours and his body was giving up on him. In an impulse moment, Sasuke helped Naruto to defeat his foes.

They spent the rest of the night reforming their once broken bonds. They talked about everything, all night long. Naruto was trying to convince him to return to Konoha. And he did. He said that "baa-chan" would defiantly forgive him, and at the same time he was grinning like he had just found a sack full of gold. Sasuke on the other hand realized what he had found. A heart of gold.

It took the elders and Tsunade three weeks to trust him and set him free. He was interrogated daily to prove his regret and that he was free from the thoughts of power he once had, but no matter what Naruto said they wouldn't believe him. The elders would never hear the words of the Kyuubi vessel. Only Tsunade was taking Naruto's word seriously, since she had a soft spot for the fox boy she was willing to listen to him. She actually gave to Sasuke his current nickname, which he hated. The Uchiha brat or just brat that was how Tsunade called him "affectionately" and she actually stuck it to a lot of people. One day they decided he had repented and they released him under the term of being watched over by Naruto constantly. He didn't mind though, he couldn't think of a better term himself. Even though he was the one who watched over Naruto most of the time since the dunce was always getting himself into trouble. A faint smile graced his lips with the memories of his friend coming to him.

Apparently no one except Naruto and a few other high-ranked people from the village knew of his return. The night he was set free Naruto decided to invite everyone he knew at the bar to celebrate. The rookie nine, Gai's team and even Gaara, Kankurou and Temari, who were there for some affairs about the Akatsuki, were all oblivious as to why Naruto was buying them drinks but they came after all. Sasuke found out, to his shock and horror that Naruto wasn't kidding when he said that he was dating Hinata. At that moment he found a new respect for the shy heiress. She was the only person that he knew who actually had a sane mind and was dating Naruto with her own free will. Sasuke noticed that they weren't the only couple among them. Shikamaru had an open relationship with the "troublesome" Temari, Tenten was with Lee and Ino had something going on with Sai.

But the biggest shock of the evening was when he met Sakura. He expected that she would come to him, cry while holding him in a tight embrace and declare her undying love for him. He was very wrong. When they met each other she gave him a sweet, too sweet to be good, smile, and the next thing he knew he was flying out of the pub and hitting his head on a tree with amazing speed. Of course she healed him afterwards but he was still dumbstruck at her strength and reaction. Apparently Neji tried to hold her but she escaped from his grasp with ease. After that he became her self-proclaimed brother and friend, just like Sai and Naruto.

And then there was Neji. Because Naruto was dating Hinata, her father wasn't willing to let those two alone, who would anyway? so Neji was forced by him to be with them in their dates. And so for the couple to have a little privacy, Sakura was going with them keeping Neji company and at the same time giving some privacy and some time alone to the happy couple. Neji and Sakura grew closer to each other, and they would hang out occasionally, without Naruto and Hinata. They had an attraction towards each other but they never showed it to each other. Naturally everyone else knew of their feelings except them. Sasuke could easily see it, without the Saringan, but he chose not to make a big deal from it.

It was funny how things have changed. As time healed most scars Sasuke could say that for the first time after years he was actually happy.

Outside the cave, Sai was leaning against the entrance having different thoughts from his companion. His mind wasn't only at Sakura, whose whereabouts were currently unknown, but at the situation they unwillingly found themselves in, and at the mission they successfully completed.

The mission was to track down and kill, the moment they found them, an army of bandits at the western Konoha border, but unfortunately the enemy had both skill and numbers. They attacked and were going to complete the mission when Sakura was distracted for a mere second. They took the chance and captured her, and when they found out that she was the Hokage's apprentice they wanted to use her for blackmailing Konoha. Eventually everything turned out fine. They got Sakura back, beat the bandits to death but they were also beaten up pretty badly themselves and they needed rest before they returned home. And then, all of a sudden without a reasonable explanation, they found themselves at an unknown place and had no idea what to do to get out of. Something was fishy from the start.

As the hours passed and Sakura was still away they grew impatient. Naruto was finally up and was his usual cheerful self once again. Sasuke and Sai were ready to strangle him. Their patience was getting diminished as Naruto kept on bubbling about anything he could imagine. And he had an awfully large imagination. From ramen to his dream of becoming the Hokage, to Hinata and even how strong Rock Lee had became, he talked and talked and wasn't going to finish anytime soon. Any normal person would have already beaten him to silence. They were hungry, tired and with the exception of Naruto who was almost healed, they still had a big amount of wounds on their bodies.

After a couple, or more precisely a lot more than a "couple", of gruesome threats Naruto finally shut up. Both shinobi thanked whatever divine force closed his mouth. Sai and Sasuke were talking about the current situation, and were so lost in their talk, never noticing the saddened look on their friend's face. He didn't show it but he was confused, and what bothered him the most, was the Akatsuki. The others never thought about it, but what if this was a well designed trap. What if they did all this to capture the demon within him? And on top of that one of his best friends was nowhere to be seen. After he woke up his friends explained to him where Sakura went and the only thing he could do was to wait for her to come back, just like them. He also had an ugly feeling at the pit of his stomach. He had found out from past experiences, that when he had that awful feeling something was going to happen. Something bad was going to happen. Ironically what was heard next didn't prove him wrong.

A sound caught their attention. All of a sudden they heard footsteps approaching their shelter. A lot of footsteps, they were more than just one person. They weren't Sakura's for sure; they knew all too well their familiar light sound. The footsteps could belong to mere travelers, but they could also belong to enemies or even worst certain enemies who wore black cloaks with red clouds on them, and called themselves "dawn". They took out their weapons and they were ready to defend themselves with everything they had. They knew that if the attacker was strong they didn't stand a chance in the state they were. But they decided without words that they would do their best and hope it was enough. Sai had a brush ready, Sasuke was ready to perform the necessary seals for Katon-no-jutsu and Naruto had kunais on his hand ready to send them to the intruder. At any minute now the people would enter the cave and the three Shinobi were ready. Ready to strike. Ready to defend their lives. Ready to give their all to the upcoming fight.