Yunbixue is about to look at the front door with a flashlight, but she is stopped by Li Qianyou.

"Don't go, be careful of danger!"

Yunbixue stares at the front with a strange look.

Li Qianyou's eyes flashed bright and deep light, explaining: "according to the theory of mechanism array, the array and mechanism formed by Jiusheng change and Jiujiu series are the most dangerous and weird."

Cloud blue snow brain sea of trance flash across a word: "on the derivative array?"

"Well, maybe there is, maybe not."

"Uncle Li, you are the descendant of ghost valley. Can't the nine nine nine derived array be solved for you?"

Li Qianyou's color changed. "In fact, the Jiujiu derived array was created by Mei Ziji, the ancestor of that year. It was set up by using dark soldiers to fight against hundreds of thousands of armies in the summer Dynasty. However, it caused too much damage. Although the two armies were fighting, it also killed too much life and was full of blood. This kind of array was called blood drinking array because of its hostility and killing. The ancestors felt that their killing was heavy, Although it was revenge, the soldiers were innocent, so he abandoned the array and did not pass it down. "

Yunbixue listen, can feel the feeling of killing, ghost Valley ancestors do is not wrong.

But she was thinking, why is it still there.

Li Qianyou seems to know what Yun bixue thinks. He explains: "there were not a few people who witnessed the array and participated in it. Although not all of the ancestors passed it down, others mastered a little bit. If they passed it down for a thousand years, it also has great power."

Cloud Bi snow solemnly nodded, "I know."

Li Qianyou looked at the front and said: "so we still have to be careful, don't be careless."

"Well."

With that, yunbixue raised a cage in her hand and looked at the little green mice inside. They were all lovely. The green mice were tied with two long red ropes.

"Uncle Li, will you let them out?"

"Go to the gate and let it out again!"

When yunbixue came to the nine gates, she could feel a chill. She put three green rats in each gate, but the head of the red rope was in her hand.

After putting it in, yunbixue, liqianyou and others are waiting in the open space.

Yunbixue anxiously waiting, secretly thinking, after finding her parents, no matter what's in his door, she will directly blow up all the places with gunpowder.

After a long time, yunbixue found that the red ropes in seven doors had stopped and stopped moving. Only the red ropes in two doors kept moving. It was certain that the green rats in the two doors were still alive.

In the end, the red rope in the two doors was used up, and the whole red rope ball was gone. Yunbixue was surprised, and the red rope was taken away by the green rat inside.

"Uncle Li, these two doors are safe. They may lead to one place."

Li Qianyou took out one of his green plates, put it on the ground, began to observe, and then looked around and inside the door.

Cloud Bi snow also don't understand, on the side dry watching.

Li Qianyou finally pointed to the left of the two doors and said, "let's take this one."

"Good."

Yunbixue thought there was any danger. She was very alert all the way, but she found that it was a secret road. There was no mechanism, but it was rather old, not like the tunnel of this era.

"This should be a tunnel set up inside the Yan people long ago. It should be used for the people to escape."