Nowadays, there are several flying dragon species that Chu Tian has not summoned, including Bolong, Electric Dragon, Poisonous Monster Dragon, Chiron, Rock Dragon, Ice Tooth Dragon, Ceramic Dragon, Crocodile Dragon, Crocodile Dragon, and Balong.

The electric dragon poison monster Long Chutian has also been unlocked, but it is too ugly. Chutian does not want to summon it unless necessary, although the crystal core Chutian is ready.

Chiron is a young rock dragon and has been unlocked, but the flame-type crystal nucleus is lacking, so it cannot be summoned. As for the rock dragon, it requires a higher-level flame-type crystal nucleus, which cannot be summoned.

The others have not been unlocked yet, so I can only wait slowly.

Before he knew it, another half month passed. As soon as this month came, Chu Tian had reserved a full mental intensity of 20W, with a total mental intensity of up to 79W, becoming the highest and highest height in Chu Tian's history.

But Chu Tian did not waste any of it, because Chu Tian’s next goal was to summon the combination of the strongest flying dragons, the strongest flying dragons of the Dragon and the Cerpillars. Even Chu Tian’s offensive unit was perfect.

As Chu Tian's level increases, the defense of monsters has also become fragile. The defense of Daming Shield Crab and Tu Salon is no longer good, so Chu Tian is ready to summon a new monster and is looking for a crystal core. As long as you find the crystal core, Chu Tian's spare mental strength of up to 50W is enough to unlock it and summon it.

Moreover, Chu Tian has guessed the category of crystal cores, which is nothing more than the flame system and the steel system. Anyway, I have to get it.

As time goes by, the strength of monsters outside is getting higher and higher. What Chu Tian cares about is that the level of the undead outside is getting higher and higher. The highest level was only level five half a month ago, and now there are level seven undead appearing.

Fortunately, there are still very few undead at level seven. With Chu Tian and other people there, the seventh level were cleaned up in a short while, but today it is different. The atmosphere on the entire battlefield is obviously very depressing.

"What's wrong?" Chu Tian asked to Rod on the side. This guy had been so frustrated with Chu Tian for several days last time, just like a child. In the end, Chu Tian took a holy light amulet from Dailina, which made the guy happy.

"The atmosphere is not right. Today's undead is obviously very excited. It seems that a powerful enemy is about to appear." Rhode said very seriously.

He doesn't have any right to laugh on weekdays, but at this time, Rhodes has always been very serious and accurate. He said that there is danger, and that must be dangerous.

"Male Fire Dragon and Female Fire Dragon, be on guard in the sky!"

Chu Tian quickly ordered, and the two fire dragons roared and flew up from the ground. Then the holy light amulet fell into Chu Tian's hand. This was Chu Tian's habit. After the male and female fire dragons flew, they did not easily land on the ground. A large number of fireballs were also an output. The two extra amulets were given to others.

He threw the amulet to Rhode, and Rhode nodded and called two level seven earth swordsmen, and they were both two shield swordsmen. Chu Tian frowned, so careful?

Chu Tian knew these two shield swordsmen. These two were brothers and twins, and they looked almost exactly the same. The only difference was their eyes. The brother's eyes were green, the younger brother's were blue, and both were shield swordsmen, and they were both earth-based.

The two of them were very good at protecting others. I heard that when they were young, the village was attacked by robbers. The two little guys each held a wooden board and blocked the attacks of eight or nine robbers, and several of them were low-level swordsmen.

Such an amazing talent attracted the attention of a passing sword saint. After killing all the robbers, he took them and their protected mother to a big city. After testing, it was very gratifying that it was actually a land-based system, and the residual fighting spirit was as high as 50%. He was a pair of veritable little geniuses.

As long as the two of them work together to protect one person, even if the enemy is two or three levels higher than them, they may not be able to break through their defense. These two guys are not inferior to Chu Tian in the shield swordsman.

The brother was called Aaron and the younger brother was called Abel. The two brothers were very honest. When they got the amulet, they looked at each other and smiled, then picked up the huge shield made of obsidian and jumped below.

The shield swordsman has one of the most famous abilities, called charge, gathers fighting spirit on his feet, and explodes instantly, as if he is a propeller, and comes to the enemy or the person he wants to protect.

"It's better to be careful. I feel that the atmosphere today is too wrong. Look at those zombies, there is an excited smile on their stiff faces..." Rhode said, pointing to the zombies in the distance. Chu Tian hurriedly looked at it. As Rhode said, the faces of the group of zombies were full of excitement and happiness, and even a hint of admiration.

"Is it the high-level zombie undead about to appear?" Chu Tian asked hurriedly. Rhode dared not deny nor confirmed. He could only shake his head helplessly. He really couldn't guess what it was.

The two people's vigilance is not unreasonable. Today's undead is indeed different from yesterday. Today's undead's attack has become more fierce. After a while, someone was injured and hurried back to replace people.

During this month and a half-month day of defending the city, Chu Tian and others strictly prohibited those who were injured and still insisted on fighting. Unless their vitality can match Chu Tian's summoned beasts, they will be injured and will go back to replace them and then receive treatment.

Otherwise, if you die, you won’t even keep the body for you. At first, someone ignored it, but later after someone was injured, Chu Tian was furious and stopped the priest from treating him. The man was in pain for a whole day, and finally begged to express his acceptance of orders in the future.

As a result, all the meridians withered and were hit directly, which was even more terrifying than inhaling the breath of the undead. The power of the undead is like a very poison in the human body. All the vitality wherever you pass will be destroyed, which is even more terrifying than cancer.

Finally, Chu Tian took out the recovery potion and saved the man. The man was angry at first, and Chu Tian refused to let him treat him, but now he knew that Chu Tian asked him to come back early for treatment.

The longer the time is delayed, the less he can be treated. The man was delayed for a day and his whole body was in pain. After the treatment was over, his meridians had withered. If it weren't for Chu Tian, ​​it would probably be a problem to practice in the future.

Everyone understood Chu Tian’s intention, and Chu Tian was afraid that such treatment would not be timely and would have a lifelong problem. Although Chu Tian could use rehabilitation medicine to treat it, Chu Tian was not a philanthropist and could not stay here all the time. So Chu Tian could only use such cruel means to tell everyone and cherish his life.

"Boom..."

Suddenly, the ground began to tremble, and then a crack appeared in front of the city with a "click", rushing straight towards the city.

"No return!" Everyone exclaimed. If the crack rushed to the city wall, even the strongest city wall would be cracked into two sections. At that time, the opening would become the gate to enter the city, and everyone's faces changed drastically.

"Magic, use magic to attack me!" Chu Tian shouted, and countless magics instantly threw down the crack, but I don't know if the crack was too deep or why, and countless magics were thrown down and there was almost no reaction.
Chapter completed!