Julius the last avatar: The shadow heir

After the fall of the Titans, peace was supposed to return.
But in the ashes of victory, a new darkness stirs - one born not of the elements, but of spirit itself.

Julius, now the fully realized Avatar, struggles to bring balance to a broken world. The four nations are in chaos, their lands scarred by the Titans' wrath. But when strange rifts begin to tear open across the realms, Julius discovers an ancient truth: a piece of the Avatar Spirit has been stolen.

From the depths of the Spirit World rises a new enemy - the Shadow Heir, a being forged from the darkness Raava once cast away. He claims to be the rightful successor to the Avatar's power - the reflection of everything Julius is meant to be... and everything he fears becoming.

As the Shadow Heir gathers lost spirits and corrupted benders to his side, entire cities fall under his influence.
To stop him, Julius must journey beyond the edge of both worlds - confronting his past lives, mastering the Spirit of Shadow, and facing the impossible truth: balance cannot exist without darkness.

When light and shadow finally clash, the world will witness the Avatar's greatest test - not to destroy his rival, but to decide which side of himself deserves to live.