When the lights go out in the 3rd quarter quell what will happen

So I was taking quizzes online and kept getting posidion, athena, or aapollo as my parents so I figured I would do a fanfic about me as a demigod and if u guys like it I can write one about u so comment pls

What would you do if you found a random pen on the floor? What will happen when Percy and the gang find a new powerful half-blood? A new villain has arisen and not only is he more powerful than anything the demigods could have imagined, he`s also teamed up with old foes.What will happen when the camps are threatened and the new half-blood, her sister and parthner, and old half-bloods join forces? Or what if something even worse happens? This story is about the new half-blood and what will happen if fairy tales and Greek mythology combine. ALL SISTERS GRIMM CHARACTERS BELONG TO MICHAEL BUCKLEY (So sorry if that's spelled wrong) AND ALL PJO AND HOO CHARACTERS BELONG TO RICK RIORDAN!