Dear Draco I Pinky Promise. (HP and PJO cross over.)

Lena is exited for her first year at Hogwarts. Although when something terrible happens, just as she is going to be sorted into her house, her first two years at Hogwarts are missed.
On the Hogwarts train she makes a promise to Draco Malfoy. One that, at the time seemed for-fillable although now when she returns to Hogwarts in Her third Year, a changed person. She releases maybe she might have to break her promise.
Lena has never met her mum so what happens when she finds out why her mother ran away. Who is her dad really. And what a huge shock she gets when she finds out about being the daughter of a major god.
(Warning: Mature language.) (I update once or twice a week but if i don't i haven't neglected the story I'm just having writers block.) P.s any kind of comments are appreciated.