"Lord, this obsidian seems to be of higher grade."

"And one here is also......"

“……”

The generals with the strength level of several historical generals were around them. Although some strange noises were heard from time to time in the holes, it seemed that there was a considerable danger, under the guidance of digging obsidian all the way, Yang Rui and his men had already penetrated deeper into the cave.

Moreover, after passing a huge natural cave, the grade of obsidian on the cave wall seemed to have improved significantly. Obsidian, which was originally of the sixth grade, had appeared frequently at this time, which made Yang Rui feel a little reluctant to stop.

Obsidian is a mutated variety of crystal stones. Guo Jia, Xu You and others mentioned a lot to Yang Rui when they were on the Death Island, and it is not just as simple as setting up a formation.

As a result, Yang Rui, Gao Shun, Dian Wei, Yu Jin and his group kept exploring the depths of the hole. Moreover, the few people became familiar with the environment inside the hole, and no substantial threats had appeared, which made Yang Rui's exploration even stronger.

Just think about it, the Golden Feathered Bird can settle down at the entrance of the hole, and there will inevitably be no monsters in the hole with too much strength than the Golden Feathered Bird. Otherwise, how can the Golden Feathered Bird be stable?

However, the extension of the hole really exceeded Yang Rui's imagination. Until Yang Rui and his friends explored inward for an hour, the obsidian grades around had gradually changed from the original 6th grade to the fifth grade, and finally the fourth grade obsidian appeared, but the holes were still bottomless.

Within an hour, the number of obsidians obtained by Yang Rui had exceeded 1,000, which was still in the dark environment in the cave and it was difficult to explore.

Among the 1,000 obsidians, although most of them are grade 6, reaching more than 800, many of them have been dug up with higher grades, including more than 180 obsidians in grade 5, and more than 50 obsidians in grade 4.

"Strange, the quality of the obsidian on this section of the cave wall seems to have declined. After a while, no fourth-grade obsidian appeared......"

Yang Rui discovered a phenomenon that he was puzzled and thought in his heart that as the distance deepened, the quality of obsidian was constantly increasing, but later he did not follow this rule.

What made Yang Rui even more confused was that as several people continued to advance, the fifth-grade obsidian on the walls of the holes gradually became rare, and in the end, the obsidian dug by Yang Rui and others returned to the level of the sixth grade!

"Lord, it seems that the exit is coming again......"

Following the main line of the obsidian vein, Yang Rui and his friends explored all the way. When the number of obsidians they obtained increased by about 50%, Yang Rui and others went to the exit of the hole again, and light was already casting in front of them.

"Squeak! Squeak......"

“……”
Chapter completed!