Book 4 Chapter 18.6 - Breaking and Entering
After walking silently for a few minutes, they finally reached the end of the staircase, and another metal gate appeared before Su. There was a monitoring camera above the metal door, only, the outer shell was covered in rust, and the lens also blurry. It had clearly lost its functionality.
Madeline stood in front of the metal door again, causing this metal door to continuously vibrate. As the frequency climbed higher and higher, the electromagnetic lock that was long beyond repair began to crack apart. Just like the first metal door, it also collapsed inward.
When the metal door opened,...