-Sasuke's P.O.V.-
"NII-SAN!!!" I heard Yuni scream through our mental link. I had never sensed her so scared. Then I felt a bit of pain like she just got pierced by a whole bunch of needles or something. Then the link vanished and I knew she was unconscious. I new something was very wrong. I jumped into the trees, but I couldn't find her. I sensed her traveling very fast away from the fight. I knew by the pace that she was going that I wouldn't be able to catch up before I collapsed or... NO DON'T THINK LIKE THAT! Everything will work out. As the distance between us increased I felt myself growing weaker. As much as I hated to admit it I was going to need my team's help. I made my way back to the team and saw that Kakashi and Zabuza were in the middle of a fight. About five minutes later I sensed my sister had stopped. Then ten minutes later Zabuza was against a tree. Just as Kakashi was about to deliver the finishing blow senbon came out of no where and killed him. My vision was blurry and I had to concentrate in order to stand. I slowly put one step in front of the other as I headed towards Zabuza. I saw some boy with a mask take his body away, but that didn't really matter to me. Then to my horror, Kakashi-sensei collapsed. 'Really, when I actually need him most he goes and passes out!'  Naruto lifted him up and we started to head to Tazuna's house. Worse, Tazuna's house was in the exact opposite direction of Yuni. By the time we got their I felt the threat of unconsciousness as black spots kept appearing in my vision. I leaned against the wall as I walked upstairs. I couldn't really hear anything. It was all just mumbles. I went to Kakashi's room to inform him of the problem as soon as he woke up. I had no clue how much time had passed, but when Kakashi finally opened his eyes Naruto and Sakura had entered the room.
"Kakashi, w-we have a problem." I struggle to say as I struggle to stand up. I took a couple steps towards him when everything went black.

-Kakashi's P.O.V.-
When I opened my eyes I saw Naruto and Sakura leaning over me. I glanced over and saw Sasuke sitting against the wall, but didn't see Yuni anywhere.
"Kakashi," Sasuke said and I turned my attention to him. My eyes widened when I saw how pale he was. He looked like a ghost. "w-we have a problem." He said as he seemingly struggled to stand up. I was immediately concerned. He took a few steps before his eyes rolled back and he fell to the floor.
"SASUKE-KUN!!!" Sakura shrieked in concern. I winced at her volume. She and Naruto raced to his side.
"Oi, Teme. Wake up!" Naruto shouted with worry written all over his face as he flipped Sasuke over onto his back.

-Some where in the forest in a hideout-
-Yuni's P.O.V.-
Everything felt heavy. Beneath me I felt that I was laying in a bed. I couldn't even open my eyes, but I could hear just fine.
"Zabuza-sama, the girl, she should have woken up hours ago." The voice I recognized as that fake Tracker nin said. I concentrated on sensing their chakra. Zabuza seemed to have a metalic grayish silver chakra with some white and a lot crimson. So he wields a weapon obviously his giant sword. It seems like he cares greatly for someone and is willing to protect that person to the best of his ability. I also sensed that he has killed many from the amount of crimson in his Chakra. The other who was the fake tracker nin, had a white and ice blue chakra. The white meaning he is very innocent. He doesn't like the idea of killing one bit. That made me curious as to what he was doing with someone like Zabuza. I wasn't going to ask though. And the ice blue chakra means he probably used ice based jutsu. 
"I don't know Haku." The voice I recognized as Zabuza said. Slowly, I built up the strength to open my eyes. Even with them open everything was blurry.
"She's awake!" The voice I now identified as Haku shouted slightly surprised.
"N-Nii-s-san." I rasped. I could barely speak.
"Not quite." Zabuza says. Haku comes into view, but is just a blur.
"N-Need Nii-s-san." I stuttered out. I then started to cough violently which caused pain to go through my body and black spots to appear in my vision.
"What's wrong with you?" Haku asks slight concern could be heard in his voice. 'Why would he be concerned about me?' I wondered.
"I n-need N-nii-s-san." I said slightly more firmly, but the effort that took made me even more tired.
"o-or-" before I could continue everything went black again.

-Back at Tazuna's-
-Sasuke's P.O.V.-
I opened my eyes to see all of Team 7 looking at me concerned.
"Sasuke are you alright?" Kakashi-sensei asked.
I shake my head no, "Y-Yuni g-gone." I managed to say.
"We know that, but she doesn't matter right now! You're what's important Sasuke-kun!" (Guess who).
I gave her the most dangerous death glare I could manage at the moment.
"It's very i-important!" I raised my voice slightly causing coughing and black spots which I pushed back.
"We can worry about Yuni later, you need rest right now." Kakashi instructs, but I ignore him and struggle into a sitting position. Surprisingly, the dobe helped me to sit up. I nodded my head at him in thanks which surprised him, but I didn't care.
"C-curse, d-die without e-each other." I say as best as I can. All of their eyes widened.
"What are you talking about, Sasuke?" Sensei asked.
"We will d-die when s-separated to far a-apart." I stuttered. "Need go n-now." I say.
"I expect an explanation later." Kakashi-sensei tells me. "Unfortunately at the moment I am not strong enough to help you, so as much as I hate this, you three will have to go alone. BE CAREFUL!" He stresses the end.

We were running full speed through the woods. I was on Naruto's back as I directed them as to where to go. If these were any other circumstances I would never have let the dobe carry me, but Imouto is more important then my pride.
The closer we got, the stronger I began to feel. After about twenty minutes of running we reached safe distance between me and my little sister.
"Naruto we are close, you can put me down now." I instructed. I was still tired from the side effects of having been so far from my sister, but I could manage fine now.
I sat down and concentrated on trying to open the mental link. I could tell she was unconscious still, but as I sort of well knocked on her head door, or I don't really know how to describe it. Anyways, as I did this it sends signals to her brain to help her wake up. It was much harder than simply communicating with our minds though which is why I am sitting down and concentrating so hard.
About twenty minutes later the mental link opened, "Nii-san" I heard Yuni's voice as I breathed a sigh of relief.
"Imouto, Naruto, Sakura, and I are coming to rescue you." I informed her. I could feel relief come from her end of the link "I need all the information you can give me."
It was quiet for a minute, then I heard her voice again, "Their aren't any windows here, but the only ninja level chakra signatures I can sense belong to Haku, the fake Tracker Ninja, and Zabuza. Everyone else are thugs, but they are spread out. If you are able to avoid the two shinobi and don't draw to much attention to yourselves you should be okay. Make sure to conceal your Chakra. I know you can, but make sure the other two can."
"Okay, see you as soon as we can." With that I cut the link.
"Okay, can you guys conceal your chakra?" I asked.
"What's catra?" Naruto asked. 'Dobe!'
"Chakra." Sakura corrected.
I sighed. "Naruto how good are you at hiding you presence. I want you to try and hide from me anywhere within a 100 foot radius." for extra motivation I added, "If I catch you then I will make sure Kakashi-sensei takes away your Ramen for a month."
He paled and jumped into the trees. I immediately noticed that I couldn't sense him at all. I have been around this team enough that even though I am not a talented sensory ninja like Yuni, but I can sense them if they are with in a range of 200 feet. I gave him a limit of 100 feet, so my sensory abilities shout be pretty good. 'How is he so good at hiding?' I wondered. (A/N: well he had to escape from those villagers and ninja when he pranked and etc. somehow.)
I jumped into the trees and went around trying to find him. Nothing. Not even a whisper which was surprising considering that this was Naruto.
"Okay, You pass Dobe!" I shouted. "You can come out now."
"Okay!" He shouted. My eyes widened when I noticed how close he had been. As in he was hiding in the tree next to me, just a few branches higher. We went back to Sakura and unfortunately for us she couldn't do so. Because I doubted all of could stay here to teach her without being caught I had her stay hidden as look out.
"Okay, now we need to suppress our chakra. From here on out we are risking our lives. If we don't conceal ourselves well enough we die. Not one sound." I say seriously. Naruto nods determination lighting in his eyes. With that we continue to Yuni. We eventually made it to a large building, that must have been Gato's lair. We carefully snuck inside careful not to draw any attention to ourselves. We stealthily went down hallway after hallway, ducking into dark shadows at the slightest of noise, until we reached a door that I could sense Yuni on the other side of.
"Careful! Zabuza's in here. He is sleeping though. Haku, could be back at anytime since he just left to get some herbs for Zabuza." I tensed with that new information. I signaled for the team to be as quiet as we possibly could be. I slowly opened the door and pointed at Zabuza. Naruto paled slightly at the sight of the missing nin. Getting the message across to him we  stuck in and approached the bed that Yuni was laying on. She looked at me and smiled.
"Can you walk?" I asked.
I saw her frown as she struggled to even sit up. Concerned, I mentally asked her what was wrong. I mean distance was definitely not a problem.
"Haku, when I was knocked out he threw senbon at me and they seem to have somehow paralyzed me. I have managed to gain a little bit of feeling again, but..." She trailed off. I went over to her and gently lifted her into my arms. As I did this she concealed her chakra and we walked out of the room. All of us scared, since we knew that if we were caught it was all over. As we were exiting the building and just about to breath a sigh of relief we heard shouting from inside the base. Sakura's head popped out of a bush at the sound of the shouting and saw us. I momentarily wanted to strangle her for being stupid enough to come so close to the base, but since the shouting was getting closer I decided against such actions. We all looked at each other and began to run full speed back to Tazuna's.

-Yuni's P.O.V.-
We were running towards Tazuna's when chakra signatures entered my range. "Sasuke-nii, there's a group of 6 thugs chasing us. We should jump into the trees and hide." I told him. He nodded and told the other two. We all jumped into the trees and waited for them to pass. (They don't have good chakra control yet so they can't tree jump.) We waited there for about three hours. We were all tense the entire time they searched the area. Once they were finally out of the range in which I could sense them I told them that we could continue moving.
Once we reached what I could only assume was Tazuna's house we were immediately greeted by sensei who was on crutches. He was asking if I was okay and how worried he was, and that he was sorry he couldn't come help. I could tell that he was really torn up about the last one.
"Sensei, don't worry we're okay. It wasn't your fault that you couldn't come. You would have if you could have." I tried to console him.

After about an hour of trying to calm sensei down we were seated at the dining table ready to explain Sasuke's and mine's situation to the rest of the team. I realize that we probably should have told the team about the curse, but I guess we forgot.
Knowing Sasuke probably wouldn't want to explain I took on the responsibility myself.
"Okay," They all listened intently, Even Naruto, "No talking or asking questions until I am done speaking." I turned on my Sharingan and glared at all of them. Sakura and Naruto gulped and frantically nodded their heads, while Kakashi merely nodded. I deactivated my Sharingan. "Okay, as you know,  Sasuke and I are twins, but what most people don't know is that twins in the Uchiha clan are different. A few hundred years ago, before Madara's time, the Uchihas had an enemy called the Kurai clan. This clan specialized in curses. At the time their were two extremely powerful members of the clan. They were, Ryuu Uchiha, and Hiroko Uchiha. They were twins and as twins they were very close. They were always together. One night, together they nearly wiped out the Kurai clan. The only survivors were the heads of the clan. In order to get revenge they put a curse on the twins so that no more twins would be born to the clan, and if somehow there were twins born into the clan they would be cursed. Personally, I believe they partially created this curse to make fun of Ryuu and Hiroko's closeness. We can feel half of each other's pain when injured, sense each others emotions, and speak telepathically. That may sound cool, but their is one more part of the curse. We have to be together. To much distance between us hurts us. And if their is enough distance it could kill us. So yeah, any questions?" I finished. They were all looking at us with eyes like saucers and had their mouths hanging open. Yep, that is pretty much what I expected from them. I squeezed Nii-san's hand and smiled at him. Looking back at my team and realized they weren't going to snap out of their shock anytime soon.  "None questions? good." I knew they probably didn't hear what I said through their shock, but I was tired and didn't care. I yawned and decided that today was to chaotic and wanted to go to bed. Nii-san, having obviously sensed my exhaustion, picked me up and carried us up to what would be our room. We weren't bothering to ask Kakashi-sense what the room assignments were since they didn't matter to us. We probably wouldn't have bothered listening to them anyways. Nii-san laid me down on a cot and covered me with a blanket before pushing the other cot in the room right up next to mine. He got under his covers and he pulled me closer to himself. I could feel the remnants of the fear of having had me be so far away. I knew we would be sticking even closer than normal for a while. Sorry Sakura. I snuggled into his chest and closed my eyes letting the feeling of safety lull me to sleep.