The group of vampire bats may have been really scared by this fire, and until Tang Feng returned to the Humvee, the group of vampire bats did not fly back.

However, what made Tang Feng a little satisfied was that in the area that he had not searched last time, Tang Feng had indeed found more than a dozen stone slab paintings and some other prehistoric relics, and now these things are lying quietly in the star core space.

After thoroughly sweeping the entire underground hall and confirming that nothing was missing, Tang Feng drove to the location of the four murals.

A few minutes later, Tang Feng stood in front of the four murals again.

The mural is still the same, there is no change at all, on both sides of the mural, there are still the two dark holes, and I don't know what is in these two holes.

Tang Feng didn't do the same as last time this time, standing in front of these four murals for five or six hours, anyway, he couldn't figure out what these four murals meant, Tang Feng simply took out his camera and took a picture, and then got into the Humvee, and got into the hole on the left side of the mural.

Judging by the location of these two openings, the opening on the left should lead to the south, but I don't know if this large tunnel, deep under the Andes, can still remain intact and allow vehicles to pass unimpeded.

After entering this tunnel, Tang Feng found that although this section of the tunnel was wider than the one that Tang Feng had crossed the Andes Mountains, the situation of this tunnel was far worse than that tunnel, because on the ground of this tunnel, there were scattered rocks everywhere, some of which were only the size of a fist, and some of which were even bigger than a house.

Obviously, these rocks are this for I don't know how many years. It was shed during the movement of the earth's crust in the Andes region.

No way, even if this tunnel was dug by aliens, this area is located in the Pacific Rim volcanic seismic belt, and I don't know how many earthquakes occur every year. And in the Andes, there is no shortage of earthquakes of magnitude 7, 8 or even 9, under the action of earthquakes of this intensity. It's strange that this tunnel is still intact.

Those small rocks are okay to say, but from time to time you can encounter those large rocks, and the Humvee can't drive through it at all, so in desperation, Tang Feng put the three of Woods and the Humvee into the space and released the all-terrain vehicle again. In this kind of terrain, the small all-terrain vehicle is still relatively adaptable.

Tang Feng drove the all-terrain vehicle along the tunnel for about half a day, but he couldn't pass in front of him, and a pile of rocks falling off from the top of the tunnel blocked the entire tunnel

Tang Feng looked at this large pile of rocks. He also shook his head helplessly, although he was already prepared in his heart, but after encountering this situation, Tang Feng was still a little helpless.

The last time Tang Feng was crossing the Andes, he also encountered this situation, but at that time, Tang Feng had to clear those rocks before he could move forward, so Tang Feng worked tirelessly to clear a passage with his hands. But this time it's different, first of all, judging by the fact that these rocks are falling off. The situation here is much more serious than the last one, and I am afraid that it is really impossible to clear a passage with just my hands.

Another one. Tang Feng explored this tunnel this time, but he didn't want to explore it all the way to the end. There are still thousands of kilometers away from the southernmost tip of the South American continent, Tang Feng doesn't want to drill such a long distance underground, with the star core in hand, Tang Feng doesn't need to explore the entire tunnel at all.

Tang Feng sat on the all-terrain vehicle and activated the deformation survey function of the star core. Suddenly, the terrain within a few thousand kilometers ahead was all surveyed by the star core.

The tunnel leads to the Antarctic continent, and from here to the south, the tunnel is always under the Andes Mountains. It wasn't until Tierra del Fuego, the southernmost point of the South American continent, that the tunnel made a turn and then went deep into the Derek Strait.

Because the detection distance is too long, the detection width of the star core is limited. After this tunnel penetrated deep into the Drake Passage, it was already outside the detection range of the star core, so Tang Feng did not waste any more energy to continue to explore.

However, even in this section of the South American continent, this tunnel has more than ten collapsed places, and the length of this collapsed section in front of him is directly more than ten kilometers, let alone digging with both hands, even if Tang Feng moves the large excavator in the star core space, he doesn't have ten days and half a month of effort, and he wants to dig through this section of the tunnel.

Digging a tunnel, Tang Feng will not do this kind of panicked work when he is full, since he has used the star core to find out the situation of this tunnel, then in the middle of the tunnel, Tang Feng can go directly to Tierra del Fuego, the southernmost part of the South American continent.

The reason why Tang Feng came here was not to explore this South American tunnel, Tang Feng already knew how the big tunnel came about, so this tunnel no longer has any attraction for Tang Feng. What Tang Feng wanted was to go through this tunnel and find the terminal area left by the first owner of the star core in Antarctica, because Tang Feng could vaguely feel that in that terminal area in Antarctica, it was very likely that there was something hidden that completely understood the secrets of the star core.

The Antarctic continent is so big, with the survey ability of the fourth-level star core, Tang Feng can't find that place anyway, the only way is to follow this tunnel, as long as the tunnel is over, then that place will be found.

Thinking of this, Tang Feng no longer hesitated, and turned around and walked back directly. There is no point in exploring any further, it is better to cross this section directly and start the survey from Tierra del Fuego.

When Tang Feng returned to the surface, it was already late at night, and before he knew it, Tang Feng had spent fifteen hours in the underground tunnel.

This time Tang Feng did not seal the cave again, this tunnel has no meaning for Tang Feng, but for those archaeologists, if they find this cave entrance, it will be a discovery that shocks the world. Therefore, Tang Feng did not waste energy to seal the hole again.

Driving the military Humvee, Tang Feng returned to the city of Karama in less than half an hour, in a place near the hotel where there was no one and no probe, Tang Feng took the Humvee back to the star core space, and then Shi Shiran walked into the hotel and returned to his room. (To be continued.) )