FYI this is my first fanfic. Also this crossover (Avatar and Voltron: LD) includes a character I made. Her name is Lana and she's the last of the Shadow Clan and Light Community. Lana's mom is from the Shadow Clan and her dad is from the Light Community. Neither the Clan nor Community actually exists in Avatar: The Last Air bender. As you can probably guess, the Shadow Clan bends shadows/darkness and the Light Community bends light. Anything else you need to know about her will be in the story. I might write another Fanfic about her. I might slip some Klance into this, sorry.

Currently the paladins (I'm going by the lions they were in in season 5, with Clone Shiro and Lotor. Keith is there, but not in a lion because he was visiting from the Blade of Marmora) went through a worm hole, but traveled through realities to the Avatar reality.

The Gaang is in the Western Air bender temple right after Zuko joined them.

Katara

The hole in the sky kind of ruined Katara's day, first Toph was being difficult this morning, then Lana refused to admit that she was a Shadow bender AND a Light bender. Katara thought that Aang should know the basics of Light bending or Shadow bending, just incase he needed to blind Fire Lord Ozai. She knew that Lana had already blinded several people after the Earthbenders and Firebenders attack her home, killing everyone except for her mom, dad, and her. Later when Lana had moved to the Southern Water Tribe, her dad had been sent to fight and died in battle. Katara didn't know how Lana's mom had died, but she knew it had been awful.
"What are you sulking about now?" Toph said, plopping down next to her.
"Lana is being difficult," Katara snapped.
Lana dropped down from the cliff in front of Katara and Toph, breathing hard.
"Where were you?" Katara asked, maybe to harsh.
"I was sparring with Sokka and Zuko near Zuko's old camp. But that's not why I wanted to talk to you; something is falling from the sky. It's not Fire Nation as far as I can tell and it isn't a war balloon."

It didn't take a lot of time for Sokka and Zuko to get down the cliff and everyone met by the fountain. There was silence as the large thing came into view and settled down in the field on the opposite side of the temple. A few seconds passed and the Gaang was impatient.
"Why don't we just head over there and meet them?" Sokka asked, leaning against the fountain.
"It would be better if we just met them there. Since we know the ground here we'd have the advantage," Lana muttered.
"Why don't you two go?" Aang said, motioning to Lana and Sokka.

Lana

As soon as Aang suggested it, Lana had a rope. It was made of the sunlight as it danced on the still water in the fountain. She handed another one to Sokka and threw one end to the other side. It reached the other side and melded with the sunlight on the grass. Lana did the same with Sokka's rope, she'd only tried this a couple times and it had worked twice. Maybe this time it wouldn't snap. Holding her end as tight as she could, she jumped. She flew through the air and almost smacked into the cliff. Lana braced her feet on the cliff and stared walking up the cliff face. As she walked up, Lana twisted her fingers in a way that ould create a handle that she could grab at the top. At least now the Gaang knew she was a bender, it was a pain in the butt to pretend she was a nonbender. She reached the top and pulled herself up. As she stood up she motioned to Sokka to head over. Lana reached behind her, to pull out her bo, a tall pole, out of her shadow. A platform lowered from the castle looking thing. She pulled Sokka up, shaking in anticipation.
A tall woman with dark skin and white hair smiled, "I'm Princess Allura and this is the Castle of Lions."

Lance

He was standing behind Allura when the platform lowered. When Hunk had spotted a figure walking up the side of the cliff, he suggested that someone go meet them. Allura volunteered and Coran gave Lance a look that said, "Go with her and if anything happens to Allura, you are responsible." So here he was. As Allura said her usual introductory line, he scanned the line of the cliff. There was a boy, he looked a bit like Lance; light caramel skin and honey brown hair. The top of his hair was pulled back into a tight pony tail. Next to him was a girl, she looked Polynesian with her dark hair that was about mid-neck length and light tan skin. She was wearing a light grey dress with a 'v' neck and the sleeves stopped at her shoulders. There was a beige sash tied around her waist and the top skirt fell to her knees and had a split on both sides of her thighs, there was a blue trim. The other skirt was grey as well and under the top skirt, but fell to halfway to her ankles. That skirt didn't have a split and had a green trim instead of a blue one. They both looked around Pidge's age, 15, but the boy was taller than Pidge and the girl was a little smaller. Lance stepped out from behind Allura, he was wearing his paladin armor and he had his bayard.
The boy shuddered as he looked at the castle, "So are you Fire Nation or an Air nomad?" He trailed off at the end.
"We are paladins of Voltron," Allura said, smiling.
The boy and girl exchanged glances, "Well whatever you are, I'm Lana and a nonbender." The girl, Lana, smiled uncertainly.
"And I'm Sokka. Mighty and powerful Waterbender," the boy said, flexing his nonexistent muscles. Lana facepalmed.

Lana

Lana groaned, Sokka was being strenuous as usual. Still, the platform had landed and she had to prepare in case they attacked. The woman stepped off and a boy darted off. He looked a bit like Sokka, but older maybe 16. Both the boy and woman had armor on; the armor were all white, except the woman had a pink trim and a pink triangle on her chest plate. The boy had blue trim and a blue triangle on his chest plate. The boy aimed something, it looked like a silver barrel with blue trim, over Sokka's shoulder and fired. A rock on the other side of the chasm exploded and Sokka immediately put his arms over his head. The boy aimed his weapon at Sokka, probably assuming that Lana would give up. Instead, she leaped forward and jumped onto the bottom of their castle. Lana hung on by the handles she'd made out of her shadow and prepared to defend herself.
"Lance! Put down your bayard! We are here to talk peacefully, not attack the locals. Remember, this is their home," The woman said, glaring at the boy, Lance.
Lance lunged at Lana and fire came out of the back of his armor. He jumped up and hovered in the air just below her. Lance aimed his silver thing at her and she leaned to the side. He didn't fire his weapon and Lana opted for the defensive. With her feet, she made a half circle and brought her knee to her chest. A rope of shadow flickered into her hand and she held onto her handles with one hand as Lana clicked a throwing knife into place on the rope. She curled into a ball and prepared.

Sokka

Without Lance pointing an unknown weapon at him, Sokka was free to secure Allura. A disappearance of a shadow caught Sokka's attention. Lana had her throwing knife in her hand and attached it to her rope. He watched as she held one with one hand and Lance pointed his weapon at Lana. As she curled into a ball Sokka winced, Lana had tried it earlier and it had barely worked. Right now she was slipping one of her feet into the handle and was preparing to jump.
"Give up," Lance growled and pointed his weapon at Lana.
Lana exploded in movement, she jumped and threw the knife. It landed right next to Sokka and he jumped. Everything seemed to go in slow motion; Lana had one leg bent at a right angle and the other was almost straight. Lance fired his weapon and the projectile flew, it hit Lana in the leg that was at a right angle. The Princess put her arm in front of Lance to prevent him from going any further. Lana landed, on her stomach, breathing hard. She rolled over on her back and sat up. Sokka and Allura scowled at Lance.
"He is most definitively a Firebender," Lana hissed between her teeth, "There's no other way he could use fire to fly and shoot it out of a fancy bucket."
She took out strips of cloth tied together and started wrapping it around the place she'd been hit. Sokka got a clear view of her injury and winced. It looked like a pretty bad burn. A blur of white and red sped in between Sokka and Lana and Lana cried out in pain. He could see that someone, probably the red blur, had given Lana a huge cut along her left arm. It was deep and went from her wrist to a little higher than her elbow.
"Keith, NO!" Allura's shout got him to turn around and there was someone there.
A boy, around Lance's age was behind him, raising a large red sword. Sokka brought up his club and blocked the attack. Lana shakily stood and spun one hand around the other, keeled, and shot out her hand. A large chunk of the castle's shadow disappeared and reappeared forming a small bubble around Sokka and Lana.

Allura

All she'd wanted to do was give the paladins a break from defending the universe and take them home, but that was ruined. It was supposed to be a peaceful contact, just let the locals know that they wouldn't be here long. Lance was over reacting and that had brought out the rest of the paladins. Behind her, the floating platform was bringing down Pidge, Hunk, Shiro, and Coran. Keith hadn't even bothered with the platform and just jumped, using his rockets to land on the ground and attack the girl. Now Allura watched as the girl preformed some kind of dance and gasped as the shadow of castle disappeared briefly. She watched as the shadows moved towards Lana. For a moment the shadows swirled around Lana and then they hardened and formed a bubble around the two locals. Keith attacked the bubble, but nothing happened. His sword bounced off the swirly bubble.
"Paladins, STOP!" Allura shouted the last word and they all looked at her, "This is their home and we attacked first. We came for a peaceful rest, not war."
"You better hope you aren't here for a war, 'cause you'll lose."
Everyone, who was facing Allura, turned and stepped back in surprise, the small green one grinned at them.

Katara

It was Toph who had spoken, the tiny Earthbender was prepared to defend Sokka and Lana. Appa bellowed and smacked his tail against the ground, causing a small shake. Aang jumped off the sky-bison's back and landed on the ground next to her. Zuko summoned flames in his hands and Katara drew the water out of her canister.
"You're so sure you'll win, but what happens if you lose?" A large man in white and yellow armor said, "Do we get bragging rights?"
Toph kicked her foot into the ground and a cylinder of earth threw the guy who spoke into the air. A boy in white and red armor ran at Toph, but she raised a large section of rock as a shield. Chaos broke out, a small boy in white and green armor shouted in surprise as Zuko shot a flame at him. Toph engaged the guys in red and blue armor; Zuko engaged the green armor boy, just barely hitting him once.
"Katara, look at Sokka and Lana!" Aang interrupted her evaluation of the battle.
She looked and was shocked. Sokka was crouched at Lana's arm, covering a bloody wound in bandages while she was wrapping her leg. Tears were streaming down her face although she was obviously trying to stop them.
"Aang, cover me!" Katara yelled, she had to get to them.
He nodded and a gust of wind pushed the yellow armor man away, he went sailing again. Katara ran and reached the bubble, just as the boy in red armor did. He brought the sword up to her throat, daring her to try something. Aang ran toward her, but way to slow. She ducked under the blade and her arm shot out; the water followed the path she was giving it and pushed into the boy. He fell back and with a smug glance over her shoulder, Katara entered the bubble.

Lana

The pain was overwhelming. Where Lance had shot her with his fire contraption burned like she'd asked Zuko to burn her leg off and where the other boy had sliced her arm felt like platypus-bear was biting her arm over and over. Sokka had finished wrapping her arm, probably tight enough to keep infection away. Her hands kept shaking from the shock and pain, so it was hard to tie. Just as Sokka leaned to help her tie bandages on the burn, Katara waddled into the bubble. She realized that her lack of focus had let Katara in, so she increased her concentration as Katara knelt down.
"I'll ask what happened later," Katara said, pulling out more water for healing, "But now we have to get you away from here. The battle is pretty intense."
Sokka balled his fists and took out his boomerang and ran out. Lana tried to protest, but Katara pushed her down so she was laying down. Lana was in to much pain to object when Katara started her healing process on Lana's leg.

Aang

"STOP!" Aang yelled at the same time that the woman with white hair did.
They walked toward each other and the fighting stopped. Zuko and Toph moved closer to the bubble of shadows, where Sokka stood. All the armored ones, as Aang decided to call them, moved to protect the woman. A muffled scream came from the bubble and Zuko looked down. Aang watched as Lana's bubble popped, revealing an unconscious Lana and Katara, who was healing her burn. Toph moved closer to Katara and and Earth shield formed around them.
"Contrary to what you might think, we are actually here for a peaceful purpose," The woman said.
"Before you attacked us," Zuko muttered, glaring at the woman.
"You mean before Lance attacked," The green one said, watching the blue one.
"Let's just stop this and explain what we're doing here. Along with the other sides story of what happened," The black one said tiredly, judging from his position, he was the leader or someone with leading skills.
"Lets do it over food! The best way to connect with people is to try their food," The big yellow one said.

Allura

The bald one unnerved Allura, he seemed to young to know how to fight, but then again Pidge was only fifteen. He walked toward Allura and she met him in half way. He stuck out a hand and she shook it.
"I'm Aang." He said and smiled.
Allura smiled back, "I'm princess Allura of Altea and this is the Castle of Lions."
Aang frowned, "So, what are you? Airbenders? Metalbenders?"
Allura kept her patience, "No, we're Paladins of Voltron."
"What's Voltron?" A sharp tone from the girl with a blue dress.
"Voltron is a very powerful weapon-" Allura paused to glare at Lance as he interrupted.
"Voltron is this huge guy whose made out of five lions and he has all of these cool weapons. We fly the lions that make up the lions!" Lance was very energetic.
Silence followed.
"So you're all insane. Great. Don't worry, we're kind of insane as well. I mean, we're a group of kids that are trying to take down the Fire Lord," It was the green one that spoke, picking her teeth.
"I think we should talk somewhere else," the blue girl said, looking around.

Katara

It took a lot of energy to get Lana's leg healed enough to cross the cliff. Even so, Aang had to call Appa to carry everyone. Aang crossed first, so he could tidy up their campsite. The newcomers looked mildly surprised at the skybision, but most of them decided to use their fire packs to cross. The woman, the blue boy, and a man with orange hair and a mustache rode on Appa. The ride was tense to say the least, Sokka and the blue boy kept glaring at each other. Lana was awake, but weak so she was using Katara for support.
"Sorry for attacking you," the blue boy muttered.
Sokka frowned, "And for shooting Lana?"
"I'm sorry for shooting your friend."
Awkward silence.
"Once we get to the other side, everyone will introduce themselves," the woman said, it wasn't a question.
"Princess, are you sure it's a good idea to go unarmed? They might be dangerous," Mustache man said, glancing at Zuko. Katara supposed Zuko did look the most intimidating. Then Mustache man looked at Toph with the same fear in his eyes, maybe they had someone on their team that looked harmless but was deadly.
"We are dangerous," Toph said, irritating as always.
"Who said we were unarmed Coran?" Blue boy said, grinning.

Aang

Aang knew he was supposed to keep the peace, being the avatar and all, but it was really hard. Especially if people kept attacking his friends. He looked around, everything was clean. All the sleeping bags and mats were shoved into their bags, the same with all the clothes. The only thing that was out was stuff for cooking and stuff he didn't know who's it was. Appa landed with his passengers, then the newcomers with their fire packs. It took a few minutes to get everyone off Appa and situated. After everyone was off Appa, they formed a circle. Zuko and Katara, who had been carrying Lana between them, set her down and Toph sat down next to her.
"So are we going to introduce ourselves or what?" Red boy said, slouching just in time for the black armor guy to hit him with his shoulder.
Aang took a shaky breath and put on a smile, "I'm Aang."
Zuko raised his hand, "Zuko, Firebender."
Katara crossed her arms, "I'm Katara. Waterbender from the South Pole.
"Toph. Earthbender." was all Toph said.
Lana was sitting up, using the fountain to brace her back, "I'm Lana. Non-bender."
Sokka mirrored his sister, "I'm Sokka."
"The lemur is Momo and my flying bison is Appa," Aang said.
The other group looked them up and down.
"You're a little young to be on your own and fighting this 'Fire Lord.'" It was blue boy.
"I'm twelve," Toph said deadpan, "Aang is 112, although most of the time we just pretend he's twelve. Katara is fourteen, Sokka is fifteen, Zuko is sixteen, and Lana is fifteen."
"Pidge. Fifteen. Green paladin," The boy in green armor said, "And I'm a girl, FYI."
Blue boy went next, "I'm Lance, seventeen, and Paladin of the Red lion." He winked at Katara, not noticing Aang and Sokka glaring at him.
"Uh, I'm Hunk, seventeen, and Paladin of the Yellow lion," the yellow guy said, the same one who'd Aang sent flying earlier.
"Sorry about throwing you earlier," Aang interrupted.
"I'm Keith, eighteen, and I'm not a Paladin. I'm part of the Blade of Marmora, another organization trying to bring down Zarkon," Red armor said, scowling.
Black armor gave Keith a worried glance, "I'm Shiro, 25, and Paladin of the Black lion."
"I'm Coran," Mustache man said, pulling out his mustache, "I'm an adviser not a Paladin and my age is none of your business."
"And I'm Princess Allura and Paladin of the Blue lion," the woman said.

Shiro

After introductions the separate groups sat down in a circle, tasked with giving the other group a food that they enjoyed, no poisoning allowed.
Shiro could just barely hear the other group talking, he heard something about one food from each of the four nations. An awkward silence followed, with the sound of someone mentioning that there were two more nations. This caused a small argument to start.
"Shiro, are you listening?" broke through his thoughts. The Paladins were looking at him.
"Not really, sorry. What are we doing?" He asked.
"Coran, Hunk, and Pidge are going back to the castle to prepare snacks and a Altean dish," Keith muttered.
"You and Allura are going to entertain the part of the other group that isn't doing anything. If all of them are doing something, watch. Keith and I are going to explore," Lance declared.
Shiro nodded, he hoped that Lance wouldn't aggravate Keith, "All right it sounds like a plan."
He watched as Pidge, Hunk, and Coran crossed the gap and entered the castle. By the time he looked back at Keith, Lance and Keith were walking down a hallway. He turned to Allura and motioned her towards the group. He walked behind Allura and sat down next to the small, green one, Toph.
"What are you doing?" Blue guy, Sokka, asked.
"Making sure you don't poison us," Shiro responded, half kidding.
"Why didn't we do that?" Sokka asked, looking at his group.
"Do you want to? You could probably catch Hunk if you left now," Allura said, sitting down next to Shiro.
Sokka glanced at the gap.
"You'll be fine, I'll give you a rope," the girl in the grey dress said, Lana.
"Do you guys need me to do something?" Sokka said, still looking worried.
"You have the most important job," Toph said, "making sure we don't get poisoned."
Lana tossed Sokka a brown rope and he looked a little worried.
"Don't worry, I got you," Lana said, grinning.
For some reason Sokka looked more relaxed. He left and Shiro watched him go.
"Aang, I need you to go find those herbs I told you about. They're in the forest above the cliff. Toph, after you get the table set up, can you get the centipede-wasp? Zuko, after you start the fire, can you go with Toph? Katara, I need your precision with the water slice. Also boiling water," Apparently done giving out her orders, Lana sat up against the wall. She'd been leaning on the fountain earlier, but had moved when everyone broke into their small groups.
"I don't need Zuko to come with me, I can handle myself." Toph muttered.
"I know, but centipede-wasps fly and Zuko is good with swords," Lana said.
Toph scowled and slammed her foot into the ground and a large block of stone rose up in front of Lana. Lana smiled at Toph's back as she stomped into the same hallway that Keith and Lance had gone down.

Lance

Lance and Keith continued down the hallway that they'd started on. The silence was starting to get to the awkward stage.
"So, it's kinda weird that the whole city is upside-down," Lance said, a trickle of sweat dripping down the side of his face.
"I think it's a kind of temple," Keith said, motioning to all the wall designs that had been etched into the rock.
"I wonder if anyone used to live here," Lance muttered to himself.
The shadows started to get thicker and the two Paladins flicked the flashlights in their helmets on.
"Should we go down another hallway?" Lance asked, opening a door only to find more darkness.
"What, are you scared?" Keith taunted.
"No," Lance said, indignantly.
Keith snickered, causing an echo of his half laugh down the hallway. Lance stretched out his arm and he touched a wall.
"It's a dead end," Lance said, unnecessarily.
Silence.
"Do you ever wonder what would have happened if something different happened on Earth?" Keith said out of the blue, causing Lance to jump.
"You mean if you hadn't gotten kicked out of the Garrison?" Lance asked, not really sure what Keith meant.
"If anything had gone differently. If Shiro hadn't gone to Kerberos, if I never got kicked out of the Garrison, if I never got into the Garrison, if any one thing had happened differently we won't be here." Keith said and moved into the light of Lance's flashlight.
"Then the universe wouldn't have Voltron," Lance reminded him gently, "and the Alteans would have continued sleeping."
Keith nodded then paused, "Someone's coming."
"Nice of you to notice," echoed out from the shadows, "now, get out of my way. I need to get that centipede-wasp."
Someone emerged from the shadows, it was the small one, Toph.
"No," Keith snarled. Toph scowled and settled into a fighting stance.
Lance took a step forward and she grinned, "There you are."
A chunk of rock detached from the wall and flew at Lance's head, to fast for him to react. The rock knocked Lance into Keith and forced both of them against the opposite wall. In a moment Lance and Keith were squished against each other and the wall.
"Now stay out of my way," Toph snapped as she stomped her foot into the ground. A ball of rock rose up just as something flew towards her, she forced the ball open and the thing flew inside.

Lana

Allura and Shiro were getting in her way. Zuko had started the fire and had gone after Toph and Katara was waiting for the water to boil. She might have been able to do it herself, but Lana warned her not to show how well she could control her bending. Toph appeared out of nowhere, scaring Lana. She must have come on Lana's left side, her bad side. Toph was levitating a ball of clay above hand and cracked it open a little. Lana slipped her hands inside the crack and reached for the darkness inside it, forming a case over the creature's wings, stinger, and head. Then Lana forced the creature out of Toph's ball and into the water. For a moment Lana stared at the centipede wasp, it was bigger than the normal centipede, had a pair of wings, a stinger at the end, and had a venomous bite that could cause a lot of pain. She waited and listened to the centipede-wasp's screams, or what counted for screams. While Katara focused on the water, Toph and Kuko, who'd appeared in Lana's vision, sat down next to Shiro and Allura. Aang swooped in on his glider, hopefully carrying the herbs Lana needed to make the centipede-wasp not deadly to eat.
"So how often do you make this?" Allura's voice caught her attention.
Unfortunately Allura and Shiro were in her, literal, blind spot. She shifted to face them, while still shifting the materials Katara had gotten her.
"Enough times to know she's serious when she cooks," Aang said, grinning.
"She used to have a garden," Zuko teased.
Lana felt her face heat up.
"Before the Fire Nation destroyed it," Katara snapped as Zuko scowled at her.
"You had a garden?" Allura asked, more politely than curious.
"Yeah, half the garden I used for herbs to be used in food. The other half could kill you. I was especially fond of my Castor Beans and Rosary Peas. Then to top it off I'd give the unlucky visitor some oleander," Lana said, in a tone that told them she was half-kidding.
Shiro looked at the centipede nervously
"Don't worry, no deadly plants live in this area. I checked," Lana said as Aang handed her the herbs she asked for.
Lana reached for the tail of the centipede-wasp and flinched when the tail twitched. She lifted it out of the pot and set it on the makeshift table, chopping of the head of the centipede. The legs twitched one more time then went still. Lana drew the knife in swirling patterns down the belly of the creature and sprinkled chopped up herbs on it. The boiled orange guts of the centipede exploded out of the belly and was only held back by the crackly skin.

Sokka

Even though it wasn't meat, it looked amazing. After the cooks were over the gap, Sokka hooked his club over the rope that was anchored in the castle's shadow. He ziplined over the gap and as he landed stumbled into Toph.
"Hey watch it!" Toph yelled.
Sokka looked over Toph's head and saw that everyone else was ready to eat, "Come on, everyone's ready."
"Wait, where's Lance?" Pidge asked, earlier she'd admitted she wasn't very good in the kitchen.
"Yeah, Keith is missing too," Hunk said, still wearing his apron.
"Follow me," Toph said and headed down a hallway.
Everyone followed Toph down the hallway, with Zuko holding a flame in his hand and every once in a while shooting a larger flame down the hallway. Eventually they came to the end of the hallway. Zuko shot one more flame into the dark and it illuminated Lance and Keith. The two were squished between a rock and the wall. Sokka knew Toph's work when he saw it.
"Seriously Toph?" Sokka and Lana screeched at the same time.
They shared a short look of annoyance before Katara exploded. Even the Paladins stepped back as Toph and Katara yelled at each other.
"Stop! This isn't going to help Lance and Keith," Allura yelled.
Katara and Toph both turned to Allura before Toph leaped into the air and smashed the rock squishing Lance and Keith. The two guys moved away from each other, almost in disgust.

Haggar

"Is everyone ready?" the grey girl said.
Everyone in that disgusting group nodded. The Paladins nodded. At the same time, everyone took a bite of the food in front of them. She could feel and taste the food in Kuron's mouth.
"Sire, I have located the paladins."