The Tide That Broke Him

Tartarus didn't kill Percy Jackson.
It changed him.
At first, it's just a voice-quiet, constant, impossible to ignore.

You're a monster.

His friends start to notice the difference. The way he fights. The way his powers feel... wrong. The way even Annabeth hesitates now.
Percy tells himself it's nothing. That he's still in control.
But the voice keeps coming back.
Louder.
And eventually...
He starts to believe it.

ALL CHARACTERS AND PLACES BELONG TO RICK RIODARN