Once Upon a time... (Chronicles of Narnia/Harry Potter Cross Over)

What will happen when a girl from the golden trio goes to live with professor Kirke when the Pevensie's are there? What will happen is that she'll get sucked into a world she didn't even know existed. What will happen when she starts to like a person she never thought she would? I don't own the characters they're actually C.S Lewis's and J.K Rowling's. I WILL REPORT IF YOU STEAL MY IDEA!!!