Here's the second chapter to the crossover.

Lance

Coran and Shiro traded the information that they'd gathered. Lana cleared her throat and Coran looked up.
"Ready?" Lana asked, holding a platter.
Coran nodded and passed out the small bowls that the snacks were in. Each paladin handed a bowl to a member of the other group. Lance gave the bowl he was holding to Lana with another apology. Keith gave the bowl to Zuko, Pidge's bowl went to Toph, Hunk's bowl to Aang, and Shiro's bowl went to Katara. Lana traded a look with Katara and put the platter in front of Allura. On the platter was a huge centipede with a pair of crispy wings attached to its back. The skin of the belly was peeled back in decorative patterns, revealing the orange guts of the creature. Katara moved water in front of all of the paladins and it solidified into ice. Lance had a feeling that Toph was right, if they did fight these guys, they would lose. He hadn't even seen the full extent of Toph's, Katara's, Zuko's, and Aang's bending. Lana and Sokka still unnerved him, they were probably great warriors. Then Lance remembered their fight, Lana had attached herself to the Castle.
Pidge poked Lance, "Ready to eat?"
Lance nodded and everyone, including the other group, took a bite at the same time. No one dropped dead, that was good. Especially since the other group could have easily poisoned them with their knowledge of their surroundings.
"Earlier you said you were here on vacation," Katara said with her mouth full, breaking the silence.
"Yes, the Paladins recently decided that they needed to show us Earth. So, we wormholed here," Allura answered.
"This isn't our Earth, Allura," Pidge pointed out, "when we went through the wormhole, we must have traveled to another universe."
Sokka spit out his food, "Wormhole? Another universe? Your Earth?"
"Sokka, when they say 'another universe' I'm guessing they mean that they can travel between universes and they come from a different one," Lana said, still chewing.
"Yes, Allura and I are Alteans. The rest are human and from their version of Earth," Coran said.
The group choked on their food.
"So you guys are from up there?" Aang said, pointing to the sky.
"In another reality, yes," Shiro said, taking another bite.
Toph laughed as Sokka choked on his food. Lana scooched over to him and pounded on his back, a small chunk of food flew out of his mouth.
"So what were you looking for on your Earth?" Katara asked, ignoring her brother.
"Somewhere we could be alone, practice fighting without injuring other people, and somewhere the Galra couldn't find us," Shiro said, also ignoring Sokka.
Lana and Zuko traded looks.
"I know a place," Lana said.

Katara

Lana had kept a lot more from everyone that they'd originally thought. First of all, her name wasn't Lana, it was Aura Bane. She still preferred to be called Lana, saying that she'd left Aura behind when the Firebenders attacked. Aang insisted that she was now Lana Aura Bane and Lana agreed. Also, she hadn't lived in the Shadow Clan; she'd just lived in the entrance to the Shadow Clan. Katara was silent as Lana explained all of this. Now both the paladins and the Gaang were walking to the cave. As they continued, Lana explained a bit more history. The Fire Nation gave the Light Community an island, which became Roku Island, and the Air Nomads gave the Shadow Clan a piece of land near the Western Air Temple. A few hundred years after that, a large section of their land caved in. The cave in revealed a large cave, easily holding all the Clan's people, and they slowly moved in. All the children fourteen to twenty-five went deeper into the cave system to master Shadow bending and other studies they chose. When they reached twenty-six, they were sent back as adults and joined the Clan. All jobs were seen as honoring the Clan and everyone helped to keep it that way. Then the Fire Nation started attacking and the Avatar disappeared, that didn't cause a lot of chaos because the Clan and the Community had never had an Avatar. Then Lana was born, causing a major upset in balance. By the time she was a year old, she showed signs of being a Light and Shadowbender. Katara knew this part, but Lana altered it a little; saying that her powers faded over time until she couldn't do it anymore. She didn't take out the part about the attack though. Fire Nation and the Earth Kingdom worked together to attack the Clan, the Kingdom collapsed all the caves. The Fire Nation took the city, killing everyone. Lana had been forced to watch as her older sister, Coua, was speared from behind. Her baby brother, Solis, was burned to death, while her grandmother was Shadowbending to camouflage Lana, her mother, and her father. Her grandmother fought hard, Shadowbending their inner-darkness until her opponents were falling apart. Then she was burned while having a stone punched through her body, she was dead before she hit the ground.
Allura cried and everyone was teary, even Zuko. Lana choked up and Katara offered to take up the story, Lana refused.
"After the everyone was gone, we went to the South Pole. Not long after, all the men were sent to fight in the war. Sokka and Katara's and my dad were in that. A tragedy brought me and Sokka together, we met and made snowmen a lot. Also, we had a lot of snowball fights," a sad smile crept over Lana's face as tears dropped off her cheek, "then mom broke. She couldn't handle anything, so we moved to a Fire Nation village. One day I was trying to Lightbend, I think I was five, and I blinded myself in my left eye. My screams attracted nearby soldiers who noticed that my hand was glowing. They found my mother and made me watch as she was tortured to death. I blinded a couple of them and got away. Without knowing where I was going, I headed to Omashu and found King Bumi. He took me in and finished my education. When I was fifteen, I heard rumors that the Avatar was back. Bumi told me to go to the North Pole and I did. I stayed there for a few weeks or months, then Aang arrived in the North Pole. I felt something pulling me towards them, Katara, Sokka, and Aang let come with them. Here we are."
In front of the group was a large sinkhole; everyone dried their tears and Katara heard something about space dust.
"How do we get in?" Coran asked, looking down.
"Leave that to me," Toph said and pushed her foot into the ground.
Aang silently joined her and within moments, the two had a section of stone gliding down the walls with everyone on it.
"Pidge, turn on your recording thing," Coran whispered, "this is probably the only time we're gonna get a guided tour."

Lana

It was painful to see her old home, exactly how she'd left it.
"Careful, some of the buildings will be unstable," Lana warned, keeping the pain out of her voice.
"So, what's the deal with this place?" Lance asked, looking around.
"Do you want me to tell them?" Zuko offered.
Lana nodded, choking down emotions.
"Is this where you two went when you said you were training a couple days ago?" Katara accused.
"Yes?" Lana said, glancing at Zuko.
"That's not a question you're supposed to answer with a question," Katara snapped.
"So what IS the point of the different sections?" Keith said, "the ones we saw as we came down the cliff."
Lana breathed in and out, "There's the housing section, the shopping section, government section, and education section. The plaza connects all the sections in the middle."
"And how is this going to help us?" Keith growled.
"You wanted a place where no one could be hurt," Zuko snapped.
"Calm down," Aang said, "Lana, why don't you give us a tour?"
Lana gave them a tour. She guided them through the empty streets of the government section and onto the plaza.
"Where to?" She asked.
"Let's show them the shops, then the schools," Zuko said, sadly smiling down at Lana.
It was easy to do because Lana was 4' 10" and Zuko was easily 5 foot. Lana nodded and led the large group down a street that was north-west of their position. The street was lined with booths and shops. The shops' second floor was on the second floor for living quarters. The Paladins and Gaang ran from shop to shop, pointing out cool stuff. Almost everybody found something, either a weapon or an accessory. Allura found some earrings, Coran had found a mustache curler, Keith found a somewhat rusty knife, Lance found a few games, Hunk found a cookbook very similar to the one Lana had, Pidge found maps of the land and records of all kinds with technological advancements, and Shiro found a history book. Plus all sorts of jewelry that the Gaang left behind.
"How much do you think this stuff is worth?" Toph said, turning to Lana.
"Probably a lot, considering it's from somewhere that no one knows about."
"Is it ok if we take it?" Aang asked, looking at all the stuff they had in their arms.
"It's fine, I mean, I'm not going to use all this stuff," Lana said, gesturing to the shops.

Allura

There was a touch of annoyance and sadness in Lana's voice as she said it. They walked down more streets and found more shops. The streets blurred together in Allura's memory as Lana showed them around. The shopping section was huge, but the education section was bigger.
"They taught everything from arts and crafts to battle strategies," Lana said, "every teacher specialized in a few careers, so they could help their students."
More streets. More buildings. The housing district flew by, although it was bigger than the other two sectors they'd seen. Each of the paladins chose a house to stay in. Krolia and Keith stayed in different houses across from each other, Lance lived next door to Pidge and Keith. Hunk chose to stay across from Pidge. Coran, Romelle, and Allura stayed together. Shiro lived behind Keith and somewhat away from the rest of the paladins. The Gaang, as Sokka called them, chose to stay in one three-story house. They explained that the girls' floor would be on the top floor, although Lana would get the attic, the boys' floor would be the second floor and the first floor would be for everyone to meet and discuss. It was easily dinner time, but nobody was hungry. Lana explained to stay away from the walls, they might collapse at any minute, but other than that, they were free to explore. Allura chose to go to the meeting floor in the Gaang's house.
"Are you feeling okay?" Katara asked, apparently Allura had walked in on a conversation.
"Yeah, I'm fine. It's just a little weird being back here; I thought that I'd left this place behind a long time ago," Lana sighed, putting bowls on the table.
"So what do you think of the paladins?" Toph said.
"I feel kinda bad about lying to them," Lana said, rubbing her arm.
"It's okay, I don't completely trust them either. We don't know them very well and even if we do trust them, they could still be Fire Nation," Zuko's voice shocked her.
"Katara, Toph, can you guys check on the Paladins? Sokka already went out," Lana's voice wobbled.
Allura heard the two girls get up and ducked into an empty room. Katara and Toph walked out the door, talking quietly. Once they were gone Allura moved back to where she was, but she wasn't alone.

Pidge

Allura scared her so badly, she almost fell. Allura jumped back and bumped into a wall. Pidge shushed her.
"I don't think we can trust them," Lana said and a clink followed like she put something down.
"Yeah, I agree. A large group of people show up, fight us, and expect us to help them," Zuko said.
A sob. Pidge inched down a little, so she could see. Lana was on her knees, head in hands, with tears dripping down her chin.
"Why'd you bring them here?" Zuko asked sitting down next to her and offered her a steaming cup of something.
Lana took the bowl and wiped her tears away with her wrist, "I know this place the best; so if we had to fight them anywhere, we'd have a major advantage."
Zuko was silent.
"This is going to be an interesting few days," Zuko mused as he patted Lana on the back.
"If by 'interesting' you mean uncomfortable, awkward, and horrible...then yes."
"Drink," Zuko said, pointing to cup in Lana's hands, "I normally make pretty awful tea, but I got help this time."
Lana sipped it, "You're right, it's better than the other time."
They both laughed awkwardly.
"What do we do if they do attack? Or if anyone attacks?"
"You really know how to ruin the moment," Lana said, sipping the tea.
"It's a family trait," Zuko said and they both laughed again.
"If they do attack, we'll use the tunnels. With Toph's Earthbending, your Firebending, and my knowledge of the tunnels, we'll get out," Lana said confidently.
Zuko nodded, "Where are we gonna meet tonight?"
Pidge almost fell.
"Since the paladins are with us, we should probably do the platform," Lana said, drinking the rest of the tea.
"Should we check on the others?" Zuko wondered, filling up Lana's cup.
"Nah, let's just sit here."
From what Pidge could see, Lana and Zuko were leaning against each other. Lana's face was bright red and Zuko's was normal.
"I wonder what Mai's doing right now," Zuko said quietly.
"Probably cursing you," Lana said and the two quietly laughed again, "I'm going to bed; see you at midnight. Don't forget, we're meeting at the platform."
Pidge forced herself to leave, it was getting dark. She walked to her house and made her way up to her bed, turning on an alarm for 11:50.

Lana

She looked out her window, it was almost time. She could hear Zuko rolling off his bed below her. Lana vaulted herself out the window, jumping from roof to roof. Her split skirt flew up in her face, she brushed it back down. Thank goodness she wore her underskirt. She landed in the center of the platform, just as she heard the door shut. Her blood ran cold, Zuko took usually took a while to get dressed and get out the door. Just a moment ago she'd heard him roll out of bed. She planted her feet in the ground and circled her hands above her head. The shadows closest to her swirled around her, cloaking her body while she focused on the moonlight, turning it into a camouflage. Now cloaked, she stepped back into the shadows. A light caught her eye, someone was heading her way. The person landed and her breath went with all her caution, away. He was gorgeous. For a minute she thought Zuko had gotten his scar removed. A guy, late teens, dark hair was standing in front of her. She dropped her camouflage. If it weren't for the Fire Nation symbol on his chest, she would have asked him to join the Gaang. Her eyes darted back to the symbol.
"Checking me out?" the guy asked, a smug grin on his face.
"You're Fire Nation," Lana stuttered.
He looked down at his abs, "Yes I am, nice of you to notice."
He winked. Rage filled Lana, it was like a porcupine-hedgehog was rising in her chest. He must have seen the reaction on her face.
"What's wrong?" He smirked and held out a hand, "I'm Shizack by the way."
She smiled and stuck out her hand, "Nice to meet you, I'm Roso."
"What happened to your face earlier?"
Lana's smiled turned cold, "I didn't realize you were Fire Nation."
Shizack smiled, "Well, aren't you?"
Lana froze and grabbed his wrist, "I just remembered, there are strange people in this place! They arrived earlier today and walked around."
He smiled warmly down at her, "Don't worry I'll protect you."
She smiled back, "To bad."
Shizack looked confused, "What?"
She flipped him. He made an arch over her head and crashed into the ground on the opposite side of her.
"Ow! What's wrong with you?" He yelled.
"A lot of things," Lana yelled back, "Fire Nation ruined this place!"
Shizack hiccuped and stood up. Lana buried her face in her hands, sobbing. It was a wave of emotion she'd been burying for a while.
"Hey, its gonna be okay," Shizack said, cupping her face in his hands, "I'll forgive you for that."
"I don't need your forgiveness," Lana yelled as she dropped to the ground.
She made a half circle with her foot and shoot out her hand, palm first. A long rope of shadow hit the boy in his knee-pits, he fell.
"Heh, I found you," Shizack said, panting, "the last Shadowbender."