Harry's cousin picks him up from the station. Not Dudley Percy his other cousin who takes him to America for half the summer before Percy goes to camp
Harry could randomly meet demigods around New York while with Percy.
In this Percy or Harry could either be a girl or boy.
They could both know each other is a different kind of half-blood.
Basically it just a story about a summer of two half-bloods one who has Greek monsters after them and the other who has a bunch of murdering psychopaths after them and a bunch of wizards looking for harry.
I have already posted a story like this on my fanfiction account XXRawwrXX under the name Family
