Nature is a miraculous creator. Pen Fun Pavilion wWw. ｂiquge。 ｉｎfo

The environments of the five branches of an underground cave are all different.

This made Lin Zeng can't help but admire in his heart, the creation is magical.

The path to the fourth cave was like going all the way to the center of the earth, but fortunately, Lin Zeng had brought enough ropes to climb the mountain, one by one, to ensure that he had enough power to help him on the way back.

The air in this cave was the worst he'd ever experienced in a cave.

Especially the deeper he went underground, the worse he felt the smell of the air.

There is an air of decay, which is getting stronger and stronger.

He was a little apprehensive in his heart, nine of the twenty-meter-long ropes had been used up, and a fifty-meter climbing rope was almost used up.

The searchlight went deeper, and it was really dark and I couldn't see the bottom, and I didn't know how deep it was.

He continued to climb down, but his mind was a little dizzy due to the somewhat suffocating air, and as he rested against a slightly protruding rock, the system's chime suddenly sounded.

"Please note that there is not enough oxygen under the cave, please return as soon as possible. ”

"Huh?" Lin Zeng did not feel very comfortable, and took a big breath, but was made even more uncomfortable by the strange smell that filled his nose.

It really can't go on.

Lin Zeng returned to the breeding space to rest for half an hour, his mind regained his clarity, put on a mask, and then returned to the cave, and with a bang, with the help of a rope, he climbed up nearly a hundred meters, and the air around him was a little better.

It seems that if there is no special crypt plant to transform the environment of this cave, this cave will be temporarily unusable. You can't go down with an oxygen cylinder every time.

Back in the original big cave, Lin Zeng put away the rope, didn't stay too long, and set off to walk towards the fifth cave.

This is the last cave.

Would there be any different environment here?

Lin Zeng thought to himself.

A long road, the road is slightly bumpy, it looks like a very ordinary cave, the cave is particularly long, Lin Zeng walked for five hours with a speed that is not fast or slow, and rested twice in the middle.

Going deep into it, it was so silent that he could even hear the sound of water dripping.

At a distance of more than ten kilometers, Lin Zeng didn't know where the land above his head would be Qinghe City? Anyway, it should be far away from the Liquor Valley.

Just when he thought that it would lead to the unknown outside world like the third cave, a light flashed into his eyes, as if confirming his thoughts.

Lin Zeng felt that this was not bad.

At least now he doesn't have to go back the way he came.

At most, it will be more troublesome in the future, find a time, and seal the third cave and the other exit of this cave with boulders.

Lin Zeng walked towards the bright light and quickened his pace, already thinking in his heart whether to go to Jiang Hua first or go back to the Big Dream Mansion first.

The light is getting stronger and stronger, and a huge cave mouth is displayed in front of Lin Zeng, and the light shines into the cave, which is a cave mouth that looks like it is seven or eight meters high.

Lin Zeng frowned, thinking to himself, such a big cave, if you want to completely block it, it is much more troublesome than the entrance of the third cave, which only allows one person to climb through.

When Lin Zeng passed through this big cave, a special scene appeared in front of him.

He was standing on a high place, and the cave was in the middle of a vertical cliff, and it could not reach the sky or the ground.

He looked down below, about thirty or forty meters high, and a dense jungle unfolded in front of him. Looking up, overhead, a huge moon-like hole poured white sunlight. It is a gourd-like terrain, with a large forest underneath and a narrow hole above.

Lin Zeng looked up and down several times, and in the end, he had to admit that perhaps, if he wanted to return to Qinghe City from here, it would be much more difficult than turning back.

The condescending sight gave Lin Zeng a clear view of the environment here.

Sinkholes!

This word flashed through Lin Zeng's mind.

A collapsed terrain, surrounded by knife-cut cliffs, makes it look like a huge well, or one with a particularly small head.

A very typical sinkhole environment.

Lin Zeng did not rush to climb down, but took out the telescope from the breeding space, lay on the cliff wall, and checked the situation under the sinkhole.

By the sun, the plant world under the sinkhole shows a special beauty, a large area of huge ferns, covering the ground, huge trees, rising from the ground, a dark river like a ribbon, flowing from one end of the rock wall, across the entire sinkhole, and into the other side of the rock wall.

From the perspective of Lin Zeng's amateur plant enthusiasts, the plants in this sinkhole are far from the forest plants in Haixi Province. It seems to be a plant kingdom of its own.

With the help of a telescope, Lin Zeng saw unknown vines, gorgeous orchids, and a plant shaped like a coconut, with clusters of red fruits hanging on it, and he didn't know if it could be eaten.

Lin Zeng swept the bottom of this sinkhole with a telescope, and secretly screamed in his heart.

It's miserable.

Visual calculations show that the bottom of this sinkhole is about a square shape, with a length and width of more than 200 meters, and a total area of more than 40,000 square meters.

Judging from the environment observed by the telescope, the ground environment in the sinkhole is complex, and if you want to explore, I am afraid it will take a long time.

Not at all a task to be completed in the short term.

"System-kun, is this sinkhole a mission in the underworld?" Lin Zeng asked by luck.

Regarding Lin Zeng's luck psychology, the system gave the answer without hesitation.

"Not counting!"

Lin Zeng was overjoyed, but unfortunately, he was happy too early.

"Start the side quest and explore the sinkhole. ”

"Mission Description: The pristine sinkhole environment, with its abundance of rare plants, is an extremely rich treasure for breeders. Explore the world of the sinkhole, use ten kinds of special plants in the sinkhole, and refine the corresponding special plants. ”

"Mission duration: 70 days"

"Task rewards: "Tiankeng Plant Refining Complete Solution", "Tiankeng Residential Construction Plan", "Rock Wall Plant Refining Manual". ”

"Penalty for Failure: 70 Days of Horrific Trials"

Lin Zeng wanted to cry without tears, but it was really no good.

It's another overlord hard bow breaking mission.

However, it was a little comforting that he was given a little buffer time. At the very least, after starting a new mission, the appearance of the sinkhole will not affect the completion of the mission in the underworld.

There are almost three days left before the trip to the Star Island Country. Although there is still more than two months to go to the task of exploring the sinkhole, Lin Zeng still plans to go down this time.

A sinkhole that no one has ever set foot in, and to explore it, as an amateur, is really difficult.

Lin Zeng took out the food from the breeding space, chewed it, and studied the plan to go down, picking up the binoculars from time to time to check the situation underneath.

Suddenly, a bright yellow stuffed creature flashed in front of his eyes, and it leaped so fast that Lin Zeng had no time to take a closer look, and it had already disappeared.