Zheng Bo clearly remembered that before he went to sleep, he had only locked the bedroom door from the inside, but now it felt like the lock wasn't just engaged, it was as if someone had double-locked it with a key.
"How could it have been... double-locked with a key!?"
At this moment, panic surged within him. His body shivering, he turned his head to look at the bathroom door.
Right then, someone on the inside was pressing down the handle of the door repeatedly, but the outside handle was jammed against the chair back on the outside, temporarily preventing the door from opening.
Turning back, Zheng Bo tried to twist his bedroom door again, but it still wouldn't budge. He lowered his head to shine a flashlight under the door and through the gap, he saw that it definitely was locked with a key.
"The key, where's the key?"
Zheng Bo turned around, searching frantically throughout the room, trying hard to remember.
