The leader, the Undead King, did not want his army to be defeated, so he had to issue an order to retreat.
The top undead kings who were constantly sending reinforcements to the valley immediately stopped their reinforcements and quickly retreated.
The top undead kings who were fighting in the exorcism formation felt relieved, broke away from the battle one after another, and ran outside.
However, how could the various tribes miss such a great opportunity? Naturally, they took advantage of his illness to kill him and directly took the opportunity to pursue him.
However, Lu Chen and An Yu were like nails, firmly nailed to the exit of the valley, attacking front and back with other tribes, mercilessly harvesting the top-notch undead king troops that escaped, and finally became a nightmare for the enemy.
However, there were too many enemies, numbering over 100,000, and the mouth of the valley was wide. Lu Chen and An Yu could not kill them no matter what, and they still watched groups of enemies fleeing out of the valley.
"Yu Li, seal the valley mouth!"
Lu Chen became anxious and immediately gave Yu Li an order.
The enemy has seen the power of the spirit exorcism formation. Once they escape this time, they will not enter the valley to fight again.
There were so many enemies entering the valley to fight. He didn't want to be run away by these enemies, but wanted to annihilate them all!
After Yu Li received the order, he immediately responded and moved all the battle walls.
In the blink of an eye, half of the battle wall moved to the entrance of the valley, stacked layer upon layer, blocking it so that the enemies trapped in the valley could not break through.
The other half of the battle wall was moved to the routes on both sides of the valley entrance, forming lines of resistance and slowdown to prevent the enemy from quickly escaping from both sides around the valley entrance.
With the cooperation of Yu Li's battle wall, a large number of enemies were trapped in front of the valley entrance, unable to advance or retreat, and it was extremely chaotic.
Lu Chen and An Yu's position at this time was exactly in the center of the enemy group, and they attacked the enemy group more unscrupulously, killing many enemies.
With the support of the fanatical legion, all the tribes had already attacked from behind, and no enemy was allowed to escape from behind.
However, the master of Zhenling Pagoda considered that there were still too many enemies, so he did not risk a sudden attack. Instead, he led his troops to suppress the enemies step by step, pushing the enemies towards Lu Chen and An Yu step by step.
After all, the tribes have a limited number of people, their strength is also limited, and the number of enemies they can kill is also limited.
Only Lu Chen and An Yu have super powerful immortal energy and are the main force to harvest the enemy.
Precisely because the various tribes were pressing hard from the rear, a large number of enemies were pushed forward, causing the enemies in the front to become increasingly crowded, adding to the large-scale massacre suitable for Lu Chen and An Yu...
The battle, like a trapped beast, lasted only half an hour. Seventy percent of the one hundred thousand enemies disappeared, and the remaining thirty thousand enemies finally collapsed.
The remaining enemies had no fighting spirit and fled one after another. Some even bypassed the entrance of the valley and climbed up the mountain peaks on both sides.
The originally steep peaks on both sides were no longer difficult to climb. Now there are tall battle walls. It is not easy for the enemy to climb over the battle walls.
The battle wall is different from the fairy tower. The wall of the fairy tower is very rough and has many uneven places, making it easier to climb.
But the battle wall is very smooth, with no uneven places, and it is almost impossible to climb unless you jump over it.
The problem is that the undead are not good at jumping, and they cannot jump high at all. At most, they can only jump to a height of several feet.
The battle walls are tens of feet high. Not to mention that the undead cannot jump over them, even the average top immortal king may not be able to jump over them.
The enemy cannot climb over the battle wall and can only go around the battle wall, which makes the escape much slower.
But that's not all, the battle wall is just an obstacle, and more blocking forces are coming one after another.
Rain of arrows!
Round after round of arrow rain came over, and those immortal arrows caused great pain to the enemies. Many enemies could not withstand it and fell down on the mountain one after another.
Magic circle!
Gao Hai released a series of magic formations, all of which were defensive formations, specifically designed to fill the holes in the battle wall, further delaying the enemy's escape speed.
organ!
The thin tiger kept throwing traps at the peaks on both sides, creating a lot of obstacles for the enemy.
The various tribes divided their troops into two groups, one on the left and the other on the right to attack the mountains on both sides. All enemies who fell from the top were annihilated.
Wan Yan and Cainiao also attacked with other tribes. One went to the left and the other to the right. They set off fairy fire or fairy thunder under the mountain peak, which brought endless trouble to the enemy.
However, without the various clans, the rear line was left to the fanatical legions to fight.
The Zealot Legion did not have enough killing power and did not take the initiative to fight. Instead, they defended throughout the entire process to prevent the enemy from escaping from the rear.
The legion's 3,000 melee fighters have shield defense and treatment, as well as some powerful core members holding down the formation. They can still barely withstand the enemy's counterattack.
There are fewer and fewer enemies, and they are getting more and more anxious to jump over the wall, attack in reverse, and try to escape in various ways, but no one can escape successfully.
There are fewer and fewer enemies, and they are less and less dense. Lu Chen and An Yu's large-scale massacre cannot kill too many enemies, and the speed of killing enemies plummets.
Lu Chen and An Yu had no choice but to divide their troops into two groups and go out to find the enemy groups to slaughter. The effect of killing the enemies was getting worse and worse, and the fighting time was getting longer and longer.
After another two hours of fighting, when the last top-level undead king was defeated, the battle to trap the enemy was finally over.
The battle wall moved away and the entrance to the valley was unlocked. Lu Chen saw the leader, the Undead King, at the first sight, and the latter was also looking over angrily.
It's just that anger is anger and reason is reason.
The leader, the Undead King, suffered a heavy loss and no longer ordered an attack. He only led his army to block the entrance of the valley and confront Lu Chen and others.
It was raining continuously outside, and the yin was so heavy that it was impossible for Lu Chen to lead his troops out.
The leader, the King of the Undead, is so powerful that he will definitely not be able to get anything good out of it, and he will probably be beaten.
"We have the Burning Sky Holy Bead, and the Yin Qi will gradually decrease. Time is on our side, and we can wait slowly."
The master of Zhenling Pagoda was full of confidence and happily said to Lu Chen, "But they can't afford to wait. When the Yin Qi dissipates and we kill them, they will be destroyed!"
"Of course, we have plenty of time, but I don't think they dare to come in again. Their final destination is to be annihilated."
Lu Chen smiled, but suddenly stretched out his hand, hooked his fingers at the leader, the Undead King, and said provocatively, "A confrontation will do no good to you. It will only lead to death. Why don't you think about it and come in to fight again?"
Roar!
The leader, the Undead King, rolled his eyes, roared at Lu Chen, then turned around and left.
The army of top-notch undead kings behind them gave way one after another, allowing the leader the undead king to pass through the army smoothly, and finally entered the cave.
The leader, the King of the Dead, left, but the army of the King of the Dead did not leave. They still stayed in place despite the rain, continued to block the entrance of the valley, and continued to confront the various tribes...