These thoughts only circulated in Lan Feng's mind for a moment before he directly issued an order for a thousand unranked goblins to rush over and dig holes in the ground immediately.

However, the speed of the Goblins alone was still too slow, so Lan Feng asked the Brood to spend some energy and pure iron and copper resources to create several large metal digging mechanisms to speed up the Goblins' digging speed.

The reason why the Brood Nest was not made before was because the veins were all within fifty meters deep. This distance did not require the use of machinery at all, and the goblins' bodies were enough to dig through it quickly.

When Lan Feng asked the Goblins to dig a passage to the Underdark, the Goblin troops led by Aiolos and Crazy Claw also gained a lot.

After they destroyed the ogre tribe, they rushed to other places without stopping, killing several large beast groups one after another, and also killed many first- and second-level wild monsters on the way.

The corpses of these creatures, no matter strong or weak, were eventually turned into life fluid in the mother nest. With enough life fluid and copper and iron mineral resources, the mother nest immediately produced batches of second-level copper claws.

Goblin.

Soon, the second day passed when Lan Feng arrived on Kara Star.

The day's results were fruitful.

Among them, the task of excavating passages in the Underdark is more than one-third completed.

In fact, if it was just digging, one day (48 hours in Kara planet time) would be enough, but considering the need to reinforce the tunnel to prevent it from collapsing, it took a lot of time.

It can be said that the main time is actually spent on reinforcing the channel.

The material used to reinforce the channel is hardened mucus specially produced by the Mother's Nest. After drying, this mucus can turn the soft soil into a structure comparable to the hardness of stone.

The brood does not consume much energy to produce this kind of hardened mucus. The energy consumed by one ton of hardened mucus is only the energy consumed to produce a second-level goblin.

This amount of energy consumption is a very small proportion of the life fetal fluid converted by Aiolos and Crazy Claw's killing throughout the day.

And all these vital fetal fluids were produced into second-order Bronze Claw Goblins in the mother nest.

After ten times the explosive troop plug-in, a total of 1,300 second-level Bronze Claw Goblins were produced.

In this way, the strength of Lan Feng's troops is:

[Unit 1 ‘Ordinary Goblin’]: 4133 (not classified)

[Unit 2 ‘Iron Claw Goblin’]: 642 (Apprentice Level 1)

[Army 3 ‘Bronze Claw Goblin’]: 1512 (Apprentice Level 2)

[Army 4 ‘Goblin Strong Archer’]: 100 (apprentice level 2) (each equipped with an A4 grade alloy longbow and one hundred A4 grade alloy arrows)

[Elite Individual]: Aiolos (early fourth-level apprentice), Crazy Claw (peak third-level apprentice)

The consequence of the expanded strength was that the area of ​​nearly ten square kilometers was almost transformed into a lifeless zone.

The anomalies in this area will definitely arouse the vigilance of other intelligent creatures.

For this reason, Lan Feng also needs to obtain stronger strength as soon as possible to deal with possible prying eyes.

Therefore, when Aiolos, Crazy Claw and others returned to their nest, they were all sent by Lan Feng to dig underground passages.

How can the mining efficiency of ordinary goblins that have not been upgraded be as good as these first- and second-level goblins?

The first-level goblin has a strength of nearly one ton, and the second-level goblin has two tons of strength. The pair of sharp claws that are as hard as metal dig like small humanoid excavating machines.

In this way, the already extremely fast excavation speed is greatly accelerated again, and the efficiency of the reinforced channel is also greatly improved.

"Tomorrow morning, we should be able to completely dig out the 500-meter-deep underground passage."

There was a look of expectation in Lan Feng's eyes.

Thanks to ‘You’re still talking back’ for the reward of 100 points
Chapter completed!