Although Ling Zhang could take advantage of Yuwen Tong's power, he never relaxed himself at all. After dinner, he went back to his study and studied how to arrange the twelve guards in the most appropriate position in the Trap and Kill Formation of Twelve; after looking at the several options he had previously considered, he was trying to make more plans.

The Trap and Kill Formation of Twelve had twelve different variations, each of which could turn into a new one; these formations looked completely different, but in fact, they were all connected with each other and they were also flexible. Now even Ling Zhang found it difficult to apply and grasp this formation completely, so it was impossible for those guards to do the same. They could only practice it one by one.

The problem was, in addition to the most basic formation, which formation should he choose for the guards to begin with?

Once Ling Zhang immersed himself in his thinking, he would forget the passage of time.

"Marshal, the light in the childe Ling's room is still on."

The guard of Green Bamboo Mansion squatted on the wall between the two courtyards, turning his head to shout toward the Green Bamboo Mansion.

Yuwen Tong didn’t sleep either. On his desk was a map of Tanyang and some detailed topographic maps of each county of Tanyang, which were collected in special ways by Yaoyi these days. One of them was a topographic map of Qi County, which was located in the southwest of the Tanyang city. This map was specially marked with a big red circle by Yuwen Tong. Unlock the whole chapter on Flying Lines -> A Tough Start