After Lin Xiajin jumped down, a smell of metallic iron rushed towards him.

Xiao Nuo and Wang Han were not far away, Lin Xiajin hurried over.

Xiao Nuo was squatting on the ground, digging something with a dagger in his hand.

"Xia Jin come quickly." Xiao Nuo said quickly when he saw Lin Xia Jin coming down.

Xiao Nuo held a small piece of black and gold metal in his hand.

"Is this black gold? A-grade metal." Lin Xiajin couldn't help but said.

Black gold is also very expensive!

"That's right! I was also drawn here and found it. This black mine is a black gold mine." Xiao Nuo said in a deep voice.

"This luck is too good! Black gold is hard to find even in Black Iron Star. I didn't expect that we found the black gold mine not long after we got here!" Compared with Xiao Nuo's calmness, Lin Xiajin was excited up.

Perishing iron is a B-grade metal, which is already very difficult to come by. What Xiao Nuo found was black gold, which is an A-grade metal!

It is more troublesome to mine!

Xiao Nuo just tried it out, and with his strength, he might have dug such a point in ten days and half a month.

Lin Xiajin also went up to try it, although it was much better than Xiao Nuo, but the mining speed was very slow.

Lin Xiajin thought of Tuantuan, this guy can eat any metal, the more advanced the metal, the more he likes it, although Tuantuan has already eaten and slept.

But this is black gold, it's worth her waking up Tuantuan.

Lin Xiajin released Tuan Tuan from the space, but Tuantuan was still unwilling at first, his eyes were tightly blocked with two paws, and his whole body lay lazily on the ground.

Lin Xiajin took out a piece of black gold and put it on Tuantuan's nose, and as expected, Tuantuan immediately opened his eyes.

Tuantuan smelled the metallic smell of black gold around him, and his fluffy body stood up, constantly sniffing the surrounding smell.

However, it was already too full, and there was no room for it in its stomach.

"Tuantuan, you dig out all these, as much as you can, I will store them in the space for you." Lin Xiajin said with a smile.

Tuantuan was very motivated when he heard Lin Xiajin's words, these are all black gold!

If it hadn't been too full to digest and upgrade, it would still be eating!

Tuantuan enlarged his body, his claws and teeth were very sharp, any hard metal seemed to be flimsy paper in front of Tuantuan.

Tuan Tuan's stomach is the hardest part of the whole body, especially Tuan Tuan's stomach acid has a super corrosive ability.

In a short while, Tuantuan had already hollowed out all the black gold around. If they were digging, I don't know how long it would take. Tuantuan would finish it in a few minutes.

They continued to walk into the cave. Not only was there black gold just now, but there were also black gold in these interconnected holes.

They stayed here for two days and almost finished digging out the black gold in the cave.

They have been living in this cave for the past few days. After a while, Gaifeng ran over and yelled at Lin Xia Jinao twice.

"Someone is here." Lin Xiajin quickly got up to remind Xiao Nuo and Wang Han.

Lin Xiajin clung to the wall and heard the movement outside along the wall.

"They should be around here, and the electronic equipment that entered the black magnetic field has failed." Nicole said with a frown.

One-eyed successfully killed those contestants, not only won the reward, but also won the medal, his medal is enough to unlock the prison seal and leave here.

"Single-eyed, he escaped from here as soon as he unlocked the seal, and he said he would help us! It's just farting! It's a pity that we have really treated him as a big brother for many years." Barton said angrily.

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