Li Xian rubbed his brow and tried to remember when he had last seen Wei Dong.
He couldn't pin it down.
Wei Dong wasn't much of a talker and didn't stand out much-Li Xian only vaguely remembered that he had still been with the group on their way to the classroom building that morning.
So Li Xian turned to Zhai Shu, who was already beginning to panic:
"Calm down."
"You're his teammate. Of everyone here, you know him best-when did you last see him?"
Zhai Shu's fingertips were still trembling slightly at her sides. Under everyone's gaze, she drew a deep breath:
"I need to think carefully... I might need some time."
Li Xian stood and offered her his chair, quietly waiting for her answer while he continued going over everything that had happened that day-
There was one thing... that might have something to do with Wei Dong's disappearance.
After sitting and thinking for a while, Zhai Shu slowly spoke:
"From when we got up this morning until we reached the classroom building, Wei Dong was walking beside me. We sat together during the first class, too. I think by the time the second class started, I'd stopped noticing whether he was still there-as if I'd forgotten there was supposed to be someone beside me..."
"So it happened between the start of the first class and the start of the second."
Li Xian quickly narrowed down the time frame and began asking more specific questions about what had happened during it:
"About twenty minutes into the first class, a Green-Dressed Girl came in—was Wei Dong still sitting beside you then?"
Zhai Shu frowned, searching her memory for a long moment before finally nodding. "Yes."
"When the Green-Dressed Girl came near our seats, we were both really nervous. Especially