The order you gave Qin Feng was to occupy Wumo city for ten days, try their best to mine dark crystal stones, take them all away after ten days, destroy the mine and give up Wumo city.

With the investment of nearly 100 lingzun, they began to dig the mine and got on the right track. Qin Feng, Mengpo magic girl, xuyin ghost girl and others went to the central mansion of the city to search for the spoils and discuss the subsequent layout.

It is obvious that the dark people will not give up here easily, but will fight back. How to resist for ten days is the problem.

And this is also the reason why Qin Feng didn't want to use all his strength before, otherwise it would attract more and stronger people from the dark family.

Qin Feng's beast control had a great contribution in the previous battle. It caused chaos in the city and disrupted the deployment of the dark clan. Now most of them are injured. Fortunately, only a few of them fell, but it still made Qin Feng feel very sad.

In order to resist the attack of the dark tribe, the defense and attack formations of Wumo city are essential. Tong Ling has studied this. With the help of a group of ghosts, such as Mengpo Witch and xuyin ghost girl, he set up three major formations outside the city.

Qin Feng is studying the Dark Jade floating array. After a day and a night's research, he gradually found out the operation method of this array.

After finishing the three major arrays, de Tong Ling and others came to study them together. It took another day to improve the Dark Jade floating array, making it more powerful. It was named Xuanyu tuotian array.

Half a day after they finished the improvement, the army of the dark tribe came in a fierce manner.

The first one is a seven level spirit ghost. Behind him are five intermediate spirit ghosts, six low-level spirit ghosts and two hundred spirit gods.

As soon as he found them, Qin Feng ordered to open Xuanyu tuotian formation, which was presided over by Mengpo, the old woman, and the spirit ghost of the four heavenly peaks of the yous, which was enough to resist the attack of the advanced spirit ghost.

Yudun of xuanhei appears at the head of the city, connecting with each other and turning into a defensive array, which is indestructible.

The direction chosen by the dark clan is the northern part of the city where the dark energy is relatively weak. They launched a fierce attack there, and wave after wave of attacks fell at the same point, trying to break the surface with points.

The Dark Jade floating sky array was originally designed by the dark tribe. They knew it very well. If Qin Feng didn't improve it, I'm afraid it would be defeated by the dark tribe soon.

However, now it can persist for a long time, and it is difficult for the dark clan army to enter the city for a time.

Tong Ling, on the other hand, urged himself to set up three great arrays. One was the mirage array, the other two were the attack array. Qin Feng assisted the mirage array, and four low-level spirits assisted the other two.

The power of the hasty array is not strong, and it can't be compared with the Dark Jade floating array. However, as long as it can harass the dark people's army, it will take time.

With the assistance of Qin Feng and others, the three formations also played a certain power, which brought some trouble to the dark clan army, making them unable to attack with all their strength. Xuanyu's sky formation was able to support for a longer time.

The ghost girl and the remaining ghosts roam in the city to guard against the attack of the dark clan.

In the twinkling of an eye, one day and one night, the dark clan army failed to break through xuanyutuotian array, but tried to destroy the three arrays arranged by Tong Ling.

Such a fierce battle, so that the dark clan strong consumption is serious, by this time, the offensive has weakened a lot.

Then, we saw that the dark army was divided into three groups and launched attacks in turn.

Seeing this, Qin Feng immediately follows the change, and lets the ghost girl take two low-level ghosts to replace the three Mengpo demons, and makes Tong Ling and others seize the time to rest.