A fractured iceberg groans in the polar cold, and a beam of light shoots skyward — bright enough to catch the attention of a scarred prince hunting ghosts. Inside the ice, a bald boy with arrow tattoos still frozen on his knuckles has been sleeping for a hundred years. Katara's hands shake as she cracks the shell open, not knowing she just yanked the world's last hope from a century of silence.

The boy is Aang, the Avatar, master of all four elements — and right now, master of absolutely none except the air he can twist into a glider. He vanished the night the Fire Nation razed his people to ash, and in his absence, the war swallowed everything. Now the Fire Lord's ships blacken every coastline, the Earth Kingdom's walls are cracking, and the only waterbender left in the Southern Tribe is the girl who woke him. Aang grins wide and deflects the weight of genocide with a whoop and a sneeze, but behind the laughter is a twelve-year-old who knows exactly what he ran from — and exactly what he has to become before Sozin's Comet streaks back into the sky and gives the Fire Nation the power to finish what it started.

Also known as: Avatar: The Legend of Aang, ATLA.