Invisible Girl

When Saffyre Maddox was ten, something terrible happened, and she's carried the pain of it ever since. The man who she thought was going to heal her didn't, and now she hides and watches him, learning his secrets, invisible in the shadows.

Owen Pick is invisible too. He's never had a girlfriend; he's never even had a friend.
Nobody sees him. Nobody cares.

But when Saffyre goes missing from opposite his house on Valentine's Day, suddenly the whole world is looking at Owen.