HALF-BLOOD MEETS HALF-BLOOD

When Harry finds out that Voldemort has a grandson, he gets angry.
When he finds out that the grandson is going to join them at hogwarts this year he gets furious.
But he really loses it when finds out that he is going to stay with them for a while during summer and that the golden trio have to show him around Hogwarts.
He knows he has no other choice after Dumbledore makes it clear on his decision.
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When Percy Jackson finds out that there are people called ' wizards' , he isn't surprised.
When he finds out that he is one too, he still isn't surprised. I mean who would after all the things he had seen his whole life right?
And when he finds out that he is going to their school called hogwarts to be safe from his another evil gramps, he is just mad that he can't catch a break.
He reluctantly agrees to go and learn more about his other side of the family.

What happens once they arrive at hogwarts? Chaos? Madness? Read and find out!