"Hold on! Hold on!!" Jia Zhengjin shouted at the city gate to cheer for Vera, the proboscis bear, and the kobold slinger.

With the proboscis bear as the main force, the huge range of flames forms a wall of flames that hinders the progress of the insect tide, and with the kobold slinger's bomb, this is simply a one-sided killing!

The fierce battle continued for some time, and the loud voice resounded in the cave. The insect tide turned and retreated again, leaving the battlefield with great speed and returning to the cave.

"What the hell is that voice?" Jia Zhengjin was puzzled.

"Maybe it's the mother of these bugs!" Vera reminded her.

When Jia Zhengjin heard this, he nodded and said, "Is it really possible! Then the most important thing is to destroy the mother body in order to be able to completely kill these insects?" Vera, can the proboscis bear continue to fight?"

"Report to Lord Keane, just take a little rest and let it eat some honey!" Vera replied.

"Okay! Immediately let it recover its strength," Jia Zhengjin looked at his experience points, "It's very close to leveling up, it seems that even upgrading two levels today is not a problem! But the most important thing is to eliminate insects, and you can't leave any troubles!"

"Yes!!"

After resting for a while, and when Vera said that the proboscis bear could continue the fight, and counted the kobold slingers and more than three hundred bombs, Jia Zhengjin once again asked the six-headed ice sculpture to go down to lure the Spire larvae.

This time, the surging insect tide is obviously much smaller than the previous two times! This indicates that the number of insects in the cave is very depleted!

Compared to the previous two insect tides, this time's attack power is also a little weaker.

After holding out for more than ten minutes, and most of the bugs were burned or blown up, the Spirai bug wave retreated back into the cave again.

And then, no matter how tempting the ice sculptures were, they refused to come up again.

Jia Zhengjin really upgraded again, but he didn't feel very satisfied. He thought that there should be many more insects, but unexpectedly, after only 12,000 or so were eliminated, the insect tide was gone! This means that there are only 10,000 larvae, not even 20,000!

I'm a little disappointed that I can't farm XP to level up, but it's good news to be able to eliminate the bug tide as soon as possible!

Vera and the proboscis bear, as well as the kobold slinger, were too tired to do so. In addition, the insect tide was no longer willing to catch up, so Jia Zhengjin ordered to withdraw to the city for a temporary rest!

Upgraded skill points are added to the basic mechanical knowledge. In this way, it is possible to build a machine tool, and then make some simple basic machinery on the machine tool. For example, wooden wheels, bellows, levers, etc.

His hands were still very tired, so he arranged his guard forces and quickly hurried back to his residential building.

"Keane!" As soon as she got home, Tina immediately leaned over, "What's going on? I heard you've killed a lot of bugs? Is that hole full of bugs? Will they hollow out our city? What if bugs dig into the city?"

Tina's worries were the same as Jia Zhengjin's previous thoughts, but Jia Zhengjin smiled and said to her, "Don't worry! I've cleared a few waves of insect tides, and it should be safe for the time being." Wait for a while, then go down and clean up all the remaining bugs!"

"That's good!" Hearing this, Tina suddenly breathed a sigh of relief, "What about that hole?"

"When the bug is gone, I'll try to plug it. Jia Zhengjin said to her, "Don't worry, you won't let them endanger anyone!

"Christina has treated her," Tina replied, "and Perrin's arm seems to have been accidentally dislocated when she fell into the water, and she suffered a minor injury. After Christina's treatment, she has fully recovered and can be alive and kicking off as long as she has a day off!"

"It's okay!" Jia Zhengjin suddenly breathed a sigh of relief, "She is also a fortune teller, if there is not such a big pool below, I am afraid that she will fall to her death directly!"

"But it's strange, why is there a pool of water in the burrows dug by the bugs?" asked Tina, puzzled.

Jia Zhengjin thought for a moment: "The reason is very simple! They dug deep enough, so there is groundwater! In fact, it is the same as digging a well!"

"Oh~" Tina suddenly realized, "I know digging a well, it turns out that it has to be so deep to have water?"

"Not necessarily, right, depending on the terrain!" Jia Zhengjin said with a smile.

Tina nodded, suddenly taking his hand, "Speaking of wells, Keane!"

"What's wrong?"

"Recently, some people have reported to me that with the increasing population in the city, the river near the city is already struggling to supply water! If we don't find a way to find a new water source, we may run out of water in that river! When the time comes, not only will the water be gone, but even the fish, shrimp, and all kinds of food in the river will disappear! We will lose an important source of water and food!" Tina said to him seriously, "This problem must be solved as soon as possible!"

"Water source?" Jia Zhengjin thought for a moment, "That's right, I can first destroy all the insects in that hole in the north of the city! and then transform it into a big well! If it's not enough, dig a few more wells nearby, anyway, there must be groundwater in that area." ”

"Well, that's for the best," said Tina, nodding, "I'm afraid the river won't be able to hold its water." If we can increase the number of wells and relieve the water pressure, it will definitely be good news for us! It would be better if the wells would provide enough water for the whole city, so that we would not damage the rivers and we would be able to get food!"

"Well, you're in a good idea. Jia Zhengjin reached out and touched her blonde hair, "Just do as you say!"

"Really? Great!" Tina happily hugged Jia Zhengjin and kissed him heavily on the cheek.

"Alright," Jia Zhengjin said to her with a smile, "I'm going to go back to my room and sleep now, and I'll go to the cave to kill the remaining insects when I recover my spirit in a few hours!"

"Well, then I won't disturb you to rest," Tina nodded gently, "It seems that I can't pick wild fruits today, I'll go to the textile factory to help!"

"Okay!"

"Keane, ask Christina to help you heal with magic, so you can regain your strength and spirit faster!" Tina reminded.

"I know," Jia Zhengjin smiled slightly, "Then I'll go rest first!"

"Well, I'm going to work first!" Tina cheerfully turned and left the residential building.

Seeing his wife leave, Jia Zhengjin walked up the stairs to the upper floor.

"Keane!" As soon as he reached the staircase, he saw Christina, dressed in a purple robe, coming out of the room.

"What are you going to do?" Jia Zhengjin asked casually.

"It's okay!" Christina shook her head, "go downstairs and get something to eat." ”

"Oh, then you can come to my room in a moment and help me heal with magic!" Jia Zhengjin said.

"Well, I'll be right here. ”