"Houyi!" A familiar voice echoes through the desolate room that has been a prison for the past 208 years. "It's time to eat."

Avatar Houyi hasn't moved much since he was a boy, and not at all for over fifty years. His legs are crossed and are fastened together beneath the cement floor by metal rods that have been inserted into his bones. He sits on the ground with his arms suspended over his head by cement pillars that encapsulate his hands.

He leans forward as his captors place a liquid meal before him at the end of a pole. Getting his lips to the straw, he takes in nourishment. Looking down as he smiles.

"Thank you Chen," he says to the guard. "I haven't had pizza in quite some time."

"It won't be much longer that the president needs you alive, Houyi. I expect by the end of the week we'll have assured that you are the last of your lineage. Humph."

The food is removed, the guard leaves. Houyi feels despair as he knows well what Chen's words mean. The forces of the People's Dominion must have captured or killed the last of the airbenders.

As a firebender, Houyi's predecessor was an earthbender, and he must be followed by one of the lineage of Avatar Aang, the last avatar to come from the nation of Air Nomads. That's the cycle of the avatar; water, earth, fire, and air. Without any airbenders being born, the line of the avatar comes to an end.