The Hidden Child

this is a Harry Potter and Percy Jackson fanfiction
Arianna Strand is a halfblood. Half god, half wizard. The problem though is her father is the god of the seas, Poseidon. Due to an old prohecy she isnt supposed to even exist, but after her mother died working for the Order her dad took her in and raised her in his palace. But as she gets older her smell stronger, and Poseidon worries that his brothers will find out about her, so he sends her to a world where her scent will be covered, and where one would not look. The Wizarding world. Hecate agrees to this as long as Arianna protects a boy named Harry Potter. Arianna agrees and goes to Hogwarts.