C203 I'm Here to Help You

A sound came from the ground.

A crack slowly appeared on the marble floor.

The crack became bigger and bigger, gradually forming a square hole that could accommodate two people standing side by side.

Jian Qin walked to the edge and looked down.

For some reason, Jian Qin suddenly thought of the entrance to the laboratory that night.

Back then, the laboratory was also full of traps