After breaking through the wall and entering the secret room behind the bookcase, the thieves immediately realized they had been exposed: a mechanism had dropped from the ceiling.
The mechanism consisted of only a wooden pole, its top fixed to a roof beam and fitted with a pivot so it could rotate. Something was probably tied to its bottom. When Li Long had sounded the Alarm Bell just now, the entire house had shaken, snapping the mechanism's suspension cord. It had then dropped from its highest point like a swing, stopping at the lowest point, and the object tied to its bottom had been flung into the secret realm.
It was an extremely simple mechanism, yet it had ruined their entire plan. Because the wooden pole fit perfectly against the roof beam, even after Yan Qing and the others had studied the Sand Table for three days, they had failed to notice anything wrong and had all taken it for part of the roof beam.
They had crossed the vast, complicated military mansion and passed through hundreds of lines of sight, yet their greatest enemies had been the Alarm Bell and the wooden pole. The simpler a mechanism was, the fewer openings it offered.
But there was still a chance. Since Li Long had been buying time, that meant that even if the prison secret realm had been prepared, it still needed time to activate!
Yaoshi Yuan was the first to step into the secret realm. As soon as she entered, she saw a jailer. The latter seemed to want to leave the secret realm and go outside to check the situation, never expecting a mysterious figure wearing a Black Wolf mask to emerge from the entrance... So he died.
The Seven Stars Sword flashed and severed his head!
Yan