Locker 160 - How might the story end?

Hello everyone ^-^
This is my first story written in English. I know my English isn’t very well, but I hope that some people will like it^^

At first I want to tell you, where I got the idea to write a story in English…
Well it wasn’t my idea and it is actually my homework for the English lesson.
When we read the story I liked it in a way and I really wanted to carry on with it.
Luck to me that our teacher gives us this task^^
Okay…lets begin with the story
At first a little summary of the story^^

The Story “Locker 160” written by Lee Busselman is about two girls, who want to bully someone because they are bored. There victim is Miriam, a classmate of them. Both girls put hate notes in her locker and play other tricks on her, like to put a plastic bag of marbles in her locker or to make a voodoo doll of her. But after a few days, Miriam doesn’t come to school.