As the fire on the bedsheet was extinguished, the alarm stopped, and the sprinkler gradually lessened. The prison returned to calm. No one noticed that in the few seconds when the fire alarm sounded, two signal lights, one red and one green, on the cell door lit up simultaneously. It indicated that the automatic door had detected a circuit fault and triggered the alarm, but it was covered by the fire alarm. Fatty took this opportunity to take over the alarm circuit with the controller.
Rex and Tou'er and others watched Fatty in shock. They never knew that the Fatty in the same cell had made a hole in the corner of the wall at some unknown time. They also didn't know what this madman, who dared to tamper with the prison's circuit, wanted to do! They could only watch in a daze as Fatty inserted a small iron piece, which had been prepared long ago, into the lock of the cell door. Then, he rudely dismantled the sensor on the cell door.
