C79 Bright Silver Spear Regression

The black shadow moved closer to the window of the viewing room and then leaned against the wall, not moving at all. It seemed to be observing the surroundings.

It was a good four or five minutes before he made his next move. He took a suction cup from his pocket and pressed it against the glass of the window. Then he pulled a knife from the boot he was wearing, and with the cup as the center