Between Black and Blue, the path of Harry Potter.

An adult Percy Jackson meets a child who will change his life.

First, English is not my first language so sorry for the lot of mistakes I can do. I'm French.
This story is a crossover between Harry Potter and Percy Jackson. So I own nothing from the both stories.
Well, I love PercyxAnnabeth but it will NOT be one. It will be PercyxNico.
I'm not sur yet how this story will turn, but I hope I will not make many clichés.
So, just for you know, (My) Percy will not be Percy-Like, as for Nico. (Physically and mentally)
For the moment, I think that I will not add other Demigods.
Well, please read and make your own idea (and tell me everything you want, it will help me for the grammar and the story-line.)