Please help add to my unfinished plot?

Hmm... maybe there is a new kid at her school, and as soon as he shows up she starts experiencing flashbacks from her past. They are NOT happy flashbacks, but she can't make any sense of them. And with the flashbacks come blinding, painful headaches. These soon become worse as the flashbacks become more and more frequent, and she starts seeing the new student in her flashbacks. When she confronts him/her about it, they tell her that they trying to defend her against an evil wizard who stole part of her soul when she was a child. The new student (who's really not as young as they look) tells her he/she defeated the wizard, but now he's back and they can't defeat him again. It's up to Mara, and she has to defeat the wizard and regain her soul (which contains her memories!) soon, otherwise the increasingly frequent headaches and flashbacks are going to kill her. What do you think? hope you liked it!