phenomen a book

One night, while fulfilling an ill advised dare to ingratiate herself with the cool girls'''' clique at her school, Diana Sinclair sees an impossible something--a six-foot worm covered in thick green slime with serrated mandibles. No one else can see it and she''''s sure she''''s going crazy. Her ''''Unusual Incident Report'''' ends up in the hands of people in the know, and she is invited to attend a prestigious school. There, the real education begins. She finds herself among others like her, people who can perceive The Unseen. She finds out her father''''s disappearance is connected to these creatures, and the world is not what she always thought.