A/N: Well howdy, all! So, I figured it's about time I put my plot idea into writing. Hopefully, if this idea sticks, I'll be done quickly, because I plan on making these chapters long and the amount of them small. LoK is currently my favourite thing on the planet and Bolin makes my heart flutter. So, hey. why not. Without further adieu, I present my first work of LoK fanfiction.

Prologue:

Safety

The figures raced through the streets, their movements swift and gentle. Soft flapping and padded footsteps scattered through the summer breeze as shadows danced on the walls of barren alleyways. Airy, rapid movements of the feet and legs carried the shadows through the empty streets. One of the shadows leapt over a garbage can, threw its legs over and heaved their torso up, catching a soft drift and rolling into a run. The other leapt from the ground and planted a foot on the alley's brick wall, giving a firm push and launching itself up the fire escape. With long strides, the shadow leapt down from the iron platform and landed beside the other shadow.

They continued these patterns of bounds and advances and vaults until they came to their destination. The two shadows skidded to a stop, only before glancing across the empty road and checking for any inhabitants. Seeing none, they gripped the sewer cover and quickly dropped down into the inky black hole.

Below the streets of Republic City, dimly lit sewers ran dry with the stench of defeat. Amon ruled the city, and now, no Benders were safe. Many had been captured already, and with the missing presence of the Avatar and the council, the city's streets were running amok with Amon's chi-blockers and thieves. The police force was scattered about the city, and now, Benders had been left to fend for themselves.

The shadows darted across the siding of the sewer, making their way out of the darkness and to a small door nested into the cement siding of the wall. Jostling the handle, the hooded figures pried open the heavy metal door. Closing it quickly behind them, the two figures pushed hard on the metal door, forcing it shut. The small, five foot by five foot space they were crammed into left a lot to be desired, but as the shorter figure knocked on the metal door ahead of them, a slot slid open and a pair of green eyes greeted the darkness.

"Password."

"Anzen-sei."

The slot slid back shut again, the warm light dissipating and leaving the two shadows in darkness once more. Clicks, and bangs were heard from the other side of the door, and within seconds, the heavy door swung open to reveal the shadows home.

"How did it go?" The woman with the green eyes asked, her face contorting with worry. The lantern she was holding illuminated the small area around the three figures. "Nasko is waiting for you. He was worried. You two were gone for awful long."

The taller, lither figure flicked off his hood, revealing a slim tan face and a curly bushel of brown hair. His eyes were as slim and shy as he was, flicking back and forth across his friend's face. "It went well. We relayed the message."

It was the smaller figures time to talk now. She tossed her hood off, reaching up and wrapping her braid and securing it in a high bun. The small woman gave a nod and laughed a little, her bright eyes shining with reassurance. "It was a bit hard, considering they have hidden pretty well. But we found her. No need for Nasko to worry."

The woman gripping the lantern nodded and led the two others down the many stone stairs, making their way deeper and deeper into the ground.

They called it the Catacomb. Laying far beneath Republic City, it was built by the Moshus, a group of earthbending monks who had decided it would be a good idea to have, incase another threat to the Avatar came. Of course, the catacombs were now serving their purpose. Not in the way that the monks believed, but soon, the avatar would arrive.

Benders from all over Republic city fled here. It was a quiet whisper in the wind, telling friends to flee and make their way to the catacombs. Few knew about it, and the ones that did were lead to safety. Word of the Catacomb spread like wildfire amongst the probenders. Enemy teams were now working together and helping one another escape from the chi-blockers, fearing for their bending. They had all witness the demise of Tahno, member of the Wolfbats…

It was quickly decided no bender should have such fate.

Nasko was the leader of the underground movement. The man was a firebender from Republic City, one who maintained the arena and watches over many of the teams. When Amon and his revelation began, the firebender stumbled upon an old book in the City's Library and quickly rushed to the catacombs. Finding that this place would be safe for the time being, he brought the team he was closest with down, along with his wife and children.

The Catgators were the underdogs. Normally, their seasons would be losing ones, their best season being a 4 and 9 win to lose record. But, Nasko was close with these probenders, and it was decided that they quickly hide themselves away. It took him weeks, but finally he had gotten two other teams into the Catacomb. The Eel Hounds and the Zebra Frogs were safe.

It came to his attention that the Fire Ferrets recruited the Avatar, and after the final match, no word had been heard from the team, that was until three days ago, when Kakoro (the Catgators waterbender) returned from the grocery bearing news that had been flying around. The Avatar was back and she had friends.

Eli and Sento were pushed out into the streets, and sent on a hunt for the Avatar. They were to relay a message from Nasko himself.

"You are welcome in our home. It is time we benders come together."