Four hundred years ago, the Gate Guardian vanished.
Since then, the Gates have been killing humanity — not by accident, but by design. Because in the Guardian's absence, something evolved. Something that was once a monster spent centuries consuming, changing, and becoming. It stood upright. It learned to think. It gave itself a name.
Birus.
And Birus has been running the Gates ever since.
The Ancient One — the highest existence, equal to none — cannot stop him directly. One absolute law binds him: he cannot interfere in human affairs. That responsibility belongs to the Guardian alone.
So he brings the Guardian back.
Not as a god. As a boy.
Seventeen years old. Border settlement. No memories of what he was. No idea why every monster that comes through a Gate looks at him like he owes them four hundred years of suffering.
His name is Reth. His branding ceremony just shattered two Registry stones and produced a rank nobody has ever seen. The Registry wants to understand him. The beasts want to destroy him. And Birus — cold, savage, patient, and as powerful as the Ancient One itself — is already waiting.
Reth doesn't know what he is yet.
But he's going to find out.