Um...sure.Came to be?If you mean came to the fallen, no idea yet.But, here's her history:
Was born December 21st, in France.She's an only child, her dad disappeared when she was 5 years old.Half-blood.She was noticed to be very courious and wanting to learn, help others, etc.So, her parents decided to send her to a school for magical kids, that's when the Dark One took over.Juane made a bunch of friends, and that's basically how she came.