A/N: So I'm planning for this to be a Legend of Korra/Bioshock cross over. This will be a dark story with adult themes, which is why it has the M rating. It might be lowered if I end up not going there.

1

"The City under the Sea"

Korra looked down at the torn tattered piece of cloth in her hand. "There are no gods in Rapture?" She looked up at General Iroh who had handed her the cloth. "What's that supposed to mean Iroh?"

"Don't know, one of my men found it in a strange submarine out in the middle of nowhere. Found some other stuff too, but that was the most confusing."

Korra handed the cloth over to Asami. "So there was nothing of interest in the wreckage?"

Iroh shook his head. "Oh there were plenty of interesting things including a corps but this seemed to be the most telling. The word rapture is capitalized as if it were a place."

Asami looked over. "I've never heard of a place called rapture."

"No one has, but we found a map with a location."

"And that's where you want to take us?"

Iroh nodded. "If possible, yes. I just have this feeling that this is something the Avatar should be apart of."

Korra nodded smiling. "Well then, give me a week and we'll meet you at the docks." She looked over at Asami and taking the cloth back. "Mako's going to love this."

Asami nodded. "He always loved a good mystery."

.o.

Mako looked out from the sub's windows at a glittering city deep under the water. "I like mysteries, but this is straight out of science fiction."

Bolin nudged his brother. "Hey maybe we should have brought Varick then? This would be a great idea for a new mover series." Elsewhere in the sub people groaned.

"I don't think that's going to happen." Asami said kindly.

"Last time that guy was on a sub he rewired it and almost sunk the whole thing." One of the sailors complained.

"I think he's banned." Another commented.

"After that stunt he pulled with the electrolysis machine? You bet he is!"

Mako rolled his eyes. "Figures. So General do you have any more information for us about this place?"

"Absolutely none." Iroh confessed. "What I've told you is all we know. It's a city called Rapture that's off the northern coast of the Fire Nation."

"Gee I love it when we have so little information."

Iroh smiled. "I thought you liked mysteries."

Mako crossed his arms. "I do but I like reading them not living them." He rubbed his left arm. "Not anymore."

Opel looked over at Bolin. "So is this how all your adventures start?"
Bolin shrugged. "Eh not really. This is the first time where Iroh's been here for the start of it. Usually he's sent as cavalry."

"Or I'm completely useless." The young general joked. "Though ever since Kuvira was locked away Riako's been almost liberal with his permission to aid the avatar. Guess the election must be coming up."

A female commander walked up. "Well I wish he would be less liberal with other countries militaries." She looked over at Iroh. "Though it is good to see you again."

Iroh kissed her cheek. "And you Commander Lafey; now how close are we to our target?"

Lafey smiled. "Come to the observation deck and find out General."

.o.

Asami's jaw dropped as she looked at the glittering city sitting under the sea. "How is this possible?"

Lafey crossed her arms. "I was hoping you'd be the one person who knew."

"I'm an engineer not a magician. This, this is amazing."

Korra nodded. "Yeah, it's like a Republic City under the sea." She took Asami's hand. "But I bet you could build it if you wanted to."

"Aw you're too sweet."

Mako leaned against the glass. "So we're going to go down there and investigate this place?"

Iroh nodded. "Yeah…we are."

"How?"

"I-I don't know. Fey how are we going to investigate the city?"

Lafey sighed. "You'll be taking one of the mini subs to investigate and be careful. I want you to check in via radio every five hours."

Iroh raised an eyebrow. "So now you're protective?"

Lafey smirked and patted Iroh's shoulder. "Always have been baby brother, Always have."

Iroh rolled hiss eyes. "Five minutes does not make me your baby brother; I'm not even the youngest!"

Lafey laughed walking away. "Not from where I'm standing General Baby bro."

Mako looked over at Iroh and smirked. "General Baby bro? That's cute. Does she call you that all the time?"

"Let it go detective and get ready for to investigate that city."

"Ok *snicker* General."

Bolin looked over at Mako. "Bro, I'm worried for you, your sense of humor has taken a real dive after you electrocuted yourself."

"What? It's kind of funny! I mean General Iroh being a baby brother! It's-it's proof that he's human!"

"So is the fact he breathes and you know I think I saw him eating earlier too!" Bolin smiled. "But you know he might walk on water when we're not looking."

The group burst into laughter while Mako glared at them.

Asami patted Mako's back with a knowing look. "It's ok, one day you'll learn how to talk to people you like."

Mako furrowed his brow. "I don't like General Iroh; I respect him. I don't like him, well I like him but not like how you like Korra…. uh I'm just digging myself further aren't I?"

Opal nodded. "Little bit."

"Let's just go check out the city. You know while I still have some dignity."

.o.

"I spoke too soon." Mako groaned feeling someone's elbow digging into his gut. "Who's is that?"

"Sorry."

"Ow!"

"Who punched me?"

The small sub felt ever smaller with six people on the inside and towering buildings on the outside. It took an hour of exploring before they found a small port that allowed the sub to rise up into an air pocket. The sub's door opened and the six spilled out one to the concrete.

Asami stood up and dusted herself off. "No offence but I hope I'm never that close to some of you ever again."

Korra smiled. "Love you too."

"You know who I was talking about."

Mako rolled his eyes. "Why do I come along on these things? I just get abuse."

Bolin helped Opel to her feet. "Oh come on they could have meant someone else."

Iroh looked around the bay. "Hey guys, let's table that conversation for a bit. Look at this place."

Mako looked around at the many discarded suitcases and the fine level of dust coating all of them. Looking up he saw a ripped red banner and the bloodstain down the wall. "Welcome to Rapture."

A/N: Hope you enjoyed. Please leave your comments if you feel so compelled and I'll be posting more often as I hope to finish this before the end of the winter break.