Nico comes to Hogwarts! He comes here because he is a teacher. Some of the people in PJO, HOO, HP, and maybe KC

There once was a prophecy long ago that the gods of Olympus and Merlin himself never thought would happen. It was called "The Prophecy of Two Worlds". The prophecy stated that two different worlds must join forces to save the world. These two worlds had never met before; barely knowing of each others existence. So when Demigods and Wizards must unite, they must do everything it takes to defeat the forces of evil. I don't own Harry Potter and Percy Jackson but the wonderful and amazing J.K. Rowling and Rick Riordan do.