With a soft creak, the door was pulled open.
Silent air rushed toward him.
The scene in Lecture Hall No. 7 seemed frozen in yesterday's chaos. Research papers lay scattered across the floor, ignored, and even the table he had knocked crooked still looked exactly as it had more than twenty hours ago, with no one having straightened it.
If not for the terrifying silence, Lu Zhou might have thought he had returned to yesterday, to the scene that had made his heart suddenly stop...
Seeing Lu Zhou silently gaze at everything inside the lecture hall, the assistant standing beside him hesitated over whether to interrupt him. But thinking of the boxed meal he had yet to finish, he still took a deep breath and asked in a tentative tone,
"I've brought you here. If you want to stay a little longer, remember to close the door when you leave. The key... should I keep it, or will you take it?"
"Give it to me."
Taking the key from the uneasy-looking assistant, Lu Zhou nodded lightly. "Once I'm done, I'll return it directly to Professor Haierqi Holden. Go take care of your work."
Professor Haierqi Holden was the secretary-general of the International Mathematical Union and one of the main people in charge of the conference's organizing committee. He was responsible for venue coordination and handling emergencies.
Hearing that Lu Zhou would contact Professor Haierqi Holden himself, the assistant breathed a sigh of relief. He said nothing more, bade farewell, and turned to leave.
The atmosphere in the lecture hall made him feel stifled.
Especially the dried streak of blood on the whiteboard...
It made him unwilling to remain here for even a second longer.
After the assistant left, Lu Zhou entered the lecture hall, turned on the lights, casually shut