Responses
I WAS RIGHT CAUSE I THOUGHT THE LAST THAT APPEARED WAS THE MOTHER BUT I DIDN'T THINK THE DUKE WAS THE FATHER. AND THEN I ASKED " WHAT IF THE DUKE HAS A SISTER AND SHE HAD AREL WITH SOMEONE AND THE DUKE TOOK HER IN!??? CAUSE THEY SAID SHE WAS BLOOD RELATED TO THE DUKE BUT I NEVER ONCE BOUGHT THE IDEA OF HIM BEING THE FATHER . I'VE PLAYED THESE GAME BEFORE!!!!!

He's not the Dad
. He's actually the Uncle
His sister is the real Mom and Arel's disease is connected to the real father's bloodline if I remember correctly.