Main Hall 3 is a Camera Behind the Window. Cindy, Candy, Blank and The Rat appear in this Camera. This room is the only camera that Blank can be seen on. In his starting position,  he can be seen standing, head looking down the the ground, back faced mostly to the camera. We can see the right side of his body. He is in the very left of the camera.  Then, Blank is seen, standing up, most of his body faced towards the camera. Finally, he is seen, moving his arm, punching the office's window. This room in connected to the office by a window in which if broken, you get jumpscared by Blank.