Seven Stars Intelligence

Limited by detection technology, the tests did not end until dawn. Both the plant inspections and white mouse trials showed that running water subjected to double-dose chlorination remained safe to drink, with the pathogens in it basically eradicated. Xia Fan breathed a small sigh of relief at the result. It meant the purification system could fully withstand deliberate poisoning. Even if the Seven Stars Bureau of Military Affairs set its sights on the upstream waters of Jiujiang in the future, cities using centralized water supplies could sleep soundly.

When the pumping pool once more began to emit its dull roar, this practical drill was finally a complete success.

"We have results on our end too." Yan Qing handed a stack of interrogation records to Xia Fan. "The culprit had neither experience resisting illusion arts nor training as a spy. The Department of Military Affairs interrogators barely had to question him before he spilled everything he knew."

Xia Fan gave the records a cursory glance.

The actual situation was more or less as expected.

After Zhou Sheng sent the secret letter to the Capital Region, it quickly drew Seven Stars' attention. They then instructed the sorcerers hidden within Shenzhou to secretly assist Young Master Zhou, while "incidentally" using a more effective biological toxin. Zhou Sheng knew nothing about this. Nor did he know that the moment he began buying arsenic all over the place, he had already caught the eye of the Department of Military Affairs, which oversaw internal security.

What surprised Xia Fan somewhat was that Zhou Sheng had previously written dozens of letters to places such as Liuzhou and Shangyuan. During the Battle of Shenzhou, he had even served as a forward base where spies could lay low, making him an intermediate node in the intelligence network. Yet Seven