Percy Jackson is Voldemort's Grandson: Demigod Percy Jackson finds out that he is the grandson of a wanted terrorist wizard named Tom Riddle. Percy reluctantly leaves New York to learn how to control his magic but there is much more going on than he expects. This is a crossover between J.K. Rowling's Harry Potter and Rick Riordan's Percy Jackson book series using characters and settings from both. Some details (mostly the years) may have been changed from the book series to make this crossover work. This is just for fun. I welcome any feedback and would really appreciate it. I plan on updating this regularly. Thank you for reading, I hope you enjoy it.