what's with that girl ?who is she ?what did she do ?read to find out...?

It's the end of the school year and Abby best friend Ella is comming to stay for the whole summer. but somthing is wrong with Ella,Abby dosent know what but somthing is wrong her parents art home and Ella wind give an explanation. then one day everything goes wrong Ella is............

a group of kids have been friends for a long time. it's there last year of elamentry school (gr 8 ) but what the don't know is that this year will be a year of hell.