Things Not Seen — Andrew Clements

invisible sight

Bobby Phillips is your average fifteen-year-old boy. That is, until he wakes up one morning and can't see himself in the mirror. Not blind, not dreaming -- Bobby is just plain invisible. There doesn't seem to be any rhyme or reason for Bobby's new condition and even his dad the physicist can't figure it out. For Bobby, that means no school, no friends, no life. He's a missing person. Then he meets Alicia. She's blind, and Bobby can't resist talking to her, trusting her. But people are starting to wonder where Bobby is, and if he's even still alive. Bobby knows that his invisibility could have dangerous consequences for his family and that time is running out. He has to find out how to be seen again -- before it's too late.