DISCLAIMER: Neither Percy Jackson or Harry Potter belongs to me. It belongs to Uncle Rick 'Troll' Riordan and J.K. 'Our Queen' Rowling, respectively.

SUMMARY: Lou Ellen never thought that the day she got her first solo quest would involved her mother's pet world, the Wizarding World. For all she knew, the wizarding world was kept secret to the other demigods, except for the children of Hecate. And she knew that if demigods (even if it was the children of Hecate) and wizards combine then it would cause an uproar. You can say that she was very surprised when Chiron initiated a quest. A quest that Lou should teach some wizards and witches 'Defense Against the Dark Arts'.

This is an original plot and it belongs to me. I've seen some fanfics where Lou Ellen goes to Hogwarts with other demigods; but in this, she's all alone. She's the main character in this one, not Percy, Nico, or any other demigods. As you can see in the description, Lou would be the DADA professor. And what's somehow new? Well, it doesn't happen in 90's. You guessed right, the timeline is the Next Generation not the Golden Trio era. If you want to borrow the plot, you can PM me. ;)

Here are things you should know about this story before starting:

• The main focus of this story is Lou Ellen; it will not be always her POV but it's all about her being the DADA professor of Hogwarts. She's the MAJOR character.

• There will be no wizards who would be demigods.

• As said before, this doesn't take place in the 90's. It actually may take place in time setting 2010 or 2011. Not yet sure. The demigod side takes place a month after BoO but before ToA; while the wizard side takes place 13 or 14 years after DH. Meaning there is Teddy or Victoire!

• The Potter Family and the other Weasleys are minor characters. Teddy and Victoire are the only ones on that family (Teddy's an honorary Potter and Weasley family member) that serves as one of the main characters.

• There might be a sequel of this story, which is going to take place in 2015 or 2016. Lou Ellen's going back and more Potters (if the story do indeed take place on 2016, we get one Potter) and Weasleys are going to attend.

• I don't know the extent of Lou Ellen's powers so I'm going to write her as a powerful person. She can do wandless magic. But that does not mean that she overpowers everyone in the Wizarding World. Gods, no, I'm not gonna write Lou as a Mary Sue.

• Since Lou Ellen's last name is unknown, she will be called Lou Ellen by others or only Professor to her students.

• There are some OCs here, but they're not much important.

WARNING: Even if this happens between BoO and ToA, reads The Hidden Oracle first because there will be few spoilers and maybe some things you wouldn't understand if you didn't read the book. But if you want to read this without reading Trials of Apollo, it's alright. Be warned of the spoilers though, explanations about things you don't understand will be in the Author's Note.

I'm super excited for this HP and PJO/HoO crossover. Are you?

The first chapter will be up in the next five days.

~Elizabeth McCurry (Persassy_Rulez/DG-Agent37-Lover)