Someone Is Always Watching
Kelley Armstrong

The strange happenings culminate in a shocking event at school: Gabrielle is found covered in blood in front of their deceased principal, with no memory of what happened.
Cracks in their friendship, as well as in their own memories, start appearing, threatening to expose long-forgotten secrets which could change the group’s lives forever. How can Blythe and her friends trust each other when they can’t even trust their own memories?