As a soon as He Yuan returned to the He mansion, he sent out a message to invite his deputy general, Wei Lin, over before heading straight to his study to write down instructions. He had a hundred shadow guards around him so he split them into six different groups.
Three groups of fifteen would be sent to Fu Zu town, Shigai city and Nanshu county respectively. Tian Weisheng's spies were already monitoring the Zhoudong spies so the job of his shadow guards was to discreetly find and monitor Tian Weisheng's spies.
If he wanted to take down Zhoudong without interference, he had to make sure Tian Weisheng was left in the dark until the very end.
As for the remaining groups of shadow guards, one group of fifteen would accompany him to the East. Although he knew what went down in the original timeline, the realm info mostly came from the perspective of the Leaser and a bit from the Special one so he did not really know the appearance of Tian Weisheng's spies.
