She is a modern agent.
Once she traveled through time, she became the eldest daughter of the Malfoy family who should not have appeared.
The Malfoy family was once cursed: this family can only be passed down from one generation to the next. If there are two sons, none of them will live past thirty!
But then again... Doesn't it mean that the curse cannot be escaped? Why do dead people still have feelings?
Damn it...