As for why she came to Yixiantian so early, even after knowing that the target in the northern border region was Changyukou, it's hard to say.

It was because she was certain that Lowe would defend against the 170-point system, so there must be something fishy about the place he discussed with Yelü Ge.

It's either fake or a cover-up.

The former plan was that they would not send troops to raid Changyukou, but would instead come to another place.

The latter plan still involves northern border soldiers raiding Changyukou, but only to provide cover for the real raiding force.

So she simply ordered the Xiao family army to split into two groups, one going to Changyukou and the other to Yixiantian.

It was easy to deduce that the other party would come from the narrow passage.

With the Mu family's powerful army guarding the entire border of Xia Prefecture, making a surprise attack difficult, that leaves only the narrow pass of Ning Prefecture.

This is a small passage between northern Xinjiang and Dasheng, and it's closer to Xining Pass.

The natural barrier is difficult to cross; it seems impregnable, and no one would have imagined that they would come from here.

The more unexpected something is, the more likely it is to happen. By working backward, she easily found their point of attack.

As for the date, she estimated it would be in the next few days. If they didn't come today, she and Bai Feng would find an excuse to stay nearby for a few days and wait for them.

She even predicted that the Bai family would send someone.

Since she had arrived at the border of Ningzhou, how could the Bai family not send someone to see her?

There must be spies in the Northern Frontier at Yixiantian. Knowing that Bai Zhixian has arrived, they will not dare to move rashly or force their way in. Poisoning the door before opening it is a more appropriate method.

Furthermore, although she had appeared, she had only stayed one night before turning away, so the spies must not have informed the leader in time that she had come.

They probably assumed she had already left, and since they were already on the verge of action and had to coordinate with the operations on the main battlefield at Xining Pass, they had to launch the attack on the border on time.

It was predictable that Bai Zhixian would run to her for help immediately.

Of course, if the other party doesn't come from Yixiantian, but chooses to enter from other secluded places in Ningzhou, isn't there still Mu Wan ahead of them?

Before leaving, she privately instructed Mu Wan to be more vigilant on the road and to immediately send her a message via hawk if she noticed anything unusual.

All of these factors enabled Xiao Zhixing to successfully intercept this operation in the northern border region.

The leader wasn't stupid either; he realized in a few moments that Xiao Zhixing had calculated everything perfectly.

A chill ran through him. He had only one thought: to escape back and tell the Imperial Tutor the truth: their operation in the Northern Frontier had been leaked and they needed to thoroughly investigate the spies!

"Eagle One, that's enough."