Nora and Yu Xian walked side by side on their way to school.

Without drawing attention to herself, Nora handed Yu Xian a small black box. "Here, for you."

As she quietly observed his reaction, Yu Xian accepted the box. He examined it briefly, then looked at Nora in confusion. "What is this?"

Nora was curious about why Yu Xian seemed to have some connection to her father. Seeing that he genuinely appeared not to recognize the box, she shook her head. "No idea. My dad suddenly took control of Roche today and gave me this box. He told me to pass it to you. Do you know my father?"

Yu Xian nodded. "I suppose you could say that."

Although he had never actually met Marcus, after last night, he could indeed be considered acquainted with the old man.

He studied the black box for a while and discovered it could be opened from one side. Inside it were two strange ports. It appeared to be an electronic device that required a specific type of cable to function. 

What antique is this?

Yu Xian took out his phone, snapped a photo, and quickly searched for it online. The black box turned out to be a solid-state drive that...