Half-Bloods at Hogwarts

Percy Jackson is going to Hogwarts!!!! Wait, rewind, rewind! Thousands of years before Percy was born, Hecate, the goddess of magic, went to the UK and gave 4 people the power of magic! And the 2 wizards and 2 witches have decided to make a school for magic! Now back to the present. Percy Jackson is going to Hogwarts...