Alien Sighting Floating Blue Orb + Alien Turns Invisible 2/7/2012

When the Alien runs through the grass is disapears just as it gets to the sand , I have seen that orb before back in sighting 6 , but back then the camera was terrible and it was a lot further away , it seemed to float to the right then the light went out - then after a few seconds I could faintly see it but I dont thibk the Camera Picked It up.