percy jackson/harry potter/real worl cross over based on true events{im not kidding i had a dream about this} Hanna was just a normal 14 year old girl living in the modern day world right? then why does she keep having dreams from another time as another person. why is she dreaming of another life? and why does it feel so familiar? like it had happened before... this is the story of Mari Di Angelo the forgotten twin sister of Nico Di Angelo and little sister of Bianca Di Angelo. why was she forgotten? did she die? and if she did then why is she back as a whole nother person? and why are her memories returning.