The 3 lives of the son of Artemis

Artemis was impregnated by Orion and gave birth to two twins, named Percy and Octavion. Percy was treated as a slave while Octavion was treated as the god he thought he was. Percy was forced to go on multiple 'quests' with his brother by Artemis with Percy doing all the work and Octavion getting all the credit boosting his already overinflated ego. One day Percy runs away and goes to camp. What happens next? Read to find out. (I don't own hoo, pjo, or harry potter so all rights go to Rick Riordan and J.K Rowling.)