Cant see anything

Hello, i have my character (worm) rigged and he has a ‘walk cycle’ . So i parentedt my camera to my worm. when i played with my camera not parented it worked fine, but when my camera is parented and i press p then the screen goes blue.
Why does this happen?
Also, does anyone know of a freelook script used for rpg’s where you can look around your character?

Try parenting it to a vertex instead of to an object (select camera, select your mesh, alt-p to unparent, then, tab, select one vertex, P to parent) and see if that helps