Currents Beneath the Classroom Podium

The nib of the fountain pen Wang Xiaoqiang’s father clutched in his final moments was engraved with the same code as the one on Ji Jianguo’s cuff links. Ji appeared in experimental photographs taken on the day of the fall, revealing the shocking secret that Wang’s memories had been tampered with. Wang Xiaoqiang’s clone reveals his true identity and ties together the physiological cause behind all the “memory flashbacks”;

The clasp of Ji Jianguo’s briefcase conceals encrypted symbols matching the markings on plans for the Second Middle School project from twenty years ago. He is destroying the experimental data from that time;

The red clay on Liang Wenxuan’s trouser cuffs will become key evidence exposing the illegal construction. The coordinates he carved point straight to the fire in the archives;

A list of fireproof nanomaterials hints at the existence of more participants, laying the groundwork for the “two-faced parent” Liang Guodong’s secret late-night meetings. The school-district housing project developed by Liang Guodong’s company will yield a teacher’s diary buried underground, which will become crucial evidence.

The fan’s rotation speed and the time of the fall share a numerical pattern, revealing that every “accident” was a precisely calculated murder. The deadly interaction between hallucinogenic vapor and the temperature-controlled printing room turns ordinary exam papers into tools for mass mind control. The map markings in the Liang family building-materials warehouse suggest that hanging dummies are being mass-produced and shipped to schools across the region.