Ye Han thought that the ice cave would go straight up and down, and it wouldn't take long for the drone to penetrate the ice, but after a while, he found that the situation was wrong: there was a thick layer of flowers on the four walls of the ice cave, and the more the icicles fell, the narrower the ice cave became.

Isn't that right? It's only twenty or thirty kilometers and it's blocked like this, what does it look like if it's a little deeper?

As Ye Han expected, after the icicles continued to fall for a distance, they began to hit the cave wall frequently, and after a while, the hole between the frosts was about the same size as the icicles, and the icicles continued to rub against the frost, and the speed suddenly decreased, and after only ten or so seconds, they were stuck by the frost, and they couldn't move up or down.

Ye Han was very annoyed, but there was nothing he could do.

It was not possible to penetrate the ice directly, so he could only pin his hopes on Hole 1.

At this time, hole 1 was still methodically releasing high-strength fibers, and the drone had descended to about 10 kilometers below the hole, which was much slower than hole 2.

Ye Han stared at the monotonous picture transmitted by the drone, and began to wonder how to send the drone under the ice smoothly...... The easiest way is to block the ice cave first, and then penetrate the ice below, but how can you block the ice cave?

The thoughts in his mind turned around a few times, and suddenly felt that it was necessary to test a few more times, and now there was only No. 1 ice cave left, and once something went wrong, he had to re-burrow, which was too much time, so he ordered He Lu to continue to make holes, and there were several at a time.

In addition to preparing a few more ice caves, Ye Han did not forget to report his thoughts to the flagship, and asked the flagship to help think of a way, as long as the ice cave can be blocked, the rest will be easy to do.

Ye Han didn't have much hope, but Luo Qi soon received a reply from the flagship, and sent Ye Han a schematic diagram of how to block the ice cave.

Ye Han was stunned at first after getting this extremely simple sketch, and then burst into ecstasy: "Luo Qi, send this picture to a group, let them follow it, and report immediately if they need anything; Inform the two groups to move closer to the first group, and the leader of the group will be under unified command! ”

Soon after, when a group received an order and a sketch, the group leader immediately waved his hand and shouted: "Stop, stop!" ”

The soldier operating the winch instinctively stopped, and the flying winch quickly stopped, and everyone looked at the team leader in surprise, not understanding what it meant to stop at this time.

The team leader sent the sketches to the fighters: "I need a volunteer!" ”

"Me!" Several fighters stood up together.

The team leader casually pointed to one of the soldiers: "Shen Bingyan, it's you, the others act immediately, hurry up!" ”

The soldiers immediately moved, hung the spare winch on the shelf, tied another high-strength fiber to Shen Bingyan's body, pulled it a few times, and after making sure that there was no problem, they stretched out their thumbs: "Okay!" ”

Shen Bingyan took a deep breath when she heard this, bent her legs, and the whole person was immediately hoisted by high-strength fibers, and walked from outside the ice cave to directly above the ice cave like a swing.

The heavy power armor fell to the simple hanger and sank slightly, and it was only after a few ups and downs that it regained stability.

The team leader's palm was gently pressed down: "Put!" Put! Put ......"

Under his command, the soldiers slowly released high-strength fibers, and Shen Bingyan slowly sank into the ice cave, and soon disappeared.

The team leader asked worriedly, "Shen Bingyan, how are you?" ”

A heavy wheezing voice came over the radio: "I'm fine, I can go a little faster!" ”

"Received, if you think something is wrong, tell me immediately!" The team leader instructed.

"Don't worry, team leader, I'm fine!"

"Be careful!" The team leader made an acceleration gesture to the soldiers, and the speed at which the winch was lowered increased a little.

At this time, the whole group of the second group arrived, and seeing that the group was busy, the leader of the second group immediately took his soldiers aside and waited for the command of the group leader.

The first team leader couldn't take care of them for the time being, and nodded at the second team leader even if he said hello, and commanded the action with one mind.

In this way, it took more than ten minutes for a group to put Shen Bingyan seven kilometers below the cave, the winch slowly slowed down, and Shen Bingyan finally stopped at seven .4 kilometers below the cave.

The team leader breathed a sigh of relief slightly: "Shen Bingyan, are you ready?" ”

Shen Bingyan reached out to the top of his head with one hand and grabbed it a few times, until he grabbed the high-strength fiber, and then let out a sigh: "Okay!" ”

"Then here we go!"

"Good!"

The team leader made a gesture, and several fighters gently pushed the hanger, and the winch immediately deviated a little to the left.

Shen Bingyan in the cave hit his back against the cave wall, and he immediately shouted: "It's the other way around......

However, it was too late, don't look at the top, just pushed a little, but when it got to the bottom, it shook a lot, and the back hit the wall of the cave directly.

It didn't hurt, but the angle of impact was inappropriate, and Shen Bingyan seemed to have been whipped by someone, and he couldn't help hanging down and spun around.

The team leader quickly changed his gesture, and the fighters immediately pushed the hanger in the opposite direction.

Everyone thought that this time it must be stable, but they didn't expect that Shen Bingyan, who was hanging below, turned his head and was dizzy, and his back hit the cave wall again, so anxious that he shouted: "It's the opposite, it's the other way around!" ”

The team leader was angry: "The left side is reversed, the right side is still reversed, which end is not reversed?" ”

Shen Bingyan was also helpless: "Forget it, wherever it is, I'll stabilize it first!" ”

The team leader gestured again, and the soldiers immediately pushed the hanger to the side, and the high-strength fibers gradually stuck to the edge of the cave entrance, and Shen Bingyan, who was hanging below, also leaned against the cave wall, and finally stopped turning.

He breathed a sigh of relief, turned to face the cave wall, supported the ice with his feet, took out a laser gun and cut it on the ice, and in a few clicks he cut a piece of ice from the cave wall, threw it away and continued to cut, three times and two times, and took out a space that was enough to accommodate himself.

Laboriously moving into the two-meter square, Shen Bingyan first pulled out the fixing cable from the armor, nailed the cable head into the ice, and fixed himself before untying the high-strength fibers on his body and fixing them on the cave wall: "Team leader, okay!" ”

The group leader gestured again, and the fighters immediately locked the winch, and one of the fighters grabbed the high-strength fiber and gently jumped into the ice cave.

Shen Bingyan continued to expand the space in the ice cave to prepare a place for his comrades.

In this way, the soldiers went down to the cave one by one, and the space at 7.4 kilometers below the hole became larger and larger, and the first step was to dig horizontally, digging the ice cave with a diameter of five meters into a diameter of ten meters, and doubling the diameter of the ice cave in one go!

And the soldiers are not just digging randomly, in addition to the diameter must be guaranteed to reach ten meters, the wall of the cave should also be as smooth as possible, especially the upper section of the reducer, not only the angle must be vertical, the section must also ensure that it is smooth, it took a lot of effort on the part of the soldiers to be qualified.

Fortunately, there is only this one section that is the most difficult, and after repairing the path, the rest is much simpler.

The soldiers continued to dig downward, so that the diameter of ten meters gradually extended downward, not just ten meters and eight meters, but directly starting from a hundred meters.