Percy Jackson is the Son of Oceanus, the Titan of the sea. His mother was killed by a hellhound when he was two, leaving him growing up in an orphanage. 11 years later he discovers the demigod world and a prophecy that may or may not involve him.

Percy and Harry Potter are twins who were left with their aunt and uncle after their parents were murdered by a powerful dark wizard. They eventually make it to Hogwarts where they find out about there dark past. Join them on their adventure through the seven books as Percy tries to protect his brother from the everlasting impression Voldemort gave him.