The words of the sixth master caught my attention, and I thought to myself that he had made a trip to the sand sea nine years ago, and although he could not remember the specific route, he should have a memory of the iconic objects that he had just stepped into the desert.

The parchment map is also a few hundred years ago, and according to previous speculation, it should be from the Ming Dynasty. It is only a general outline of the route, and does not have accurate zoom and precise latitude and longitude markings like modern maps. This parchment map is like a random drawing, and the road map winds through the desert Forte, with only general directions and prominent landmarks to be used as a reference.

If you deviate a little bit from the beginning of walking in the vast desert, if you continue to walk, the angle of this deviation will continue to be magnified, and you will eventually miss the next road sign or final destination.

The directions on the parchment map are only general signs, so we cannot use them as a reference for specific marches. What you really need to refer to is the specific direction marked on the parchment map when you cross each road sign.

The first sign is to pass through the gap between the first and second dunes from the left, and then go all the way through the three dunes. It is not known how far the gap between the two dunes deviates due south.

There was a great surprise in reality and on the map, and this surprise left us at a loss. Gu Yixin obviously knew what this meant, she frowned and looked at me with a puzzled expression.

I hope to find out the reason for the change in the sand dunes from the memories of the sixth master. So he asked the sixth master: "Sixth master, can you tell us in detail about the situation when you entered the desert nine years ago?" ”

The sixth master looked at me, a trace of suspicion appeared on his face, and asked, "Brother Su, I don't remember the events of nine years ago very clearly, where to start?" ”

I simply asked, "Do you just have to recall the situation when you traveled here, and the size of those three mountains is the same as the one in front of us?" ”

Only then did the sixth master find the incision, looked at the outline of the sand dunes a mile away, looked at it, frowned for a moment, and replied: "It's different, it seems to be ...... It doesn't seem to be like any of them! "After that, the sixth master asked Miao Yiding to call Ah Biao over.

The housekeeper shouted to the back of the team, and together with the others, Ah Biao, who took the opportunity to sit on the sand to rest, heard that the sixth master called him, so he quickly got up, patted the sand on his ass with one hand, and trotted over.

The sixth master gestured to the sand dunes in front of him with his jaw and asked, "Ah Biao, there were three sand dunes here nine years ago, do you remember what those three sand dunes looked like?" ”

Ah Biao glanced at it and replied, "Remember, those three sand dunes are all like hills, tall and big, and they look like they are connected from a distance, but when I got closer, I found that they were actually far away from his grandmother's!" It's bigger than that! ”

The sixth master nodded, and said to me and Gu Yixin: "Yes, what Ah Biao said is exactly the shape of the three sand dunes nine years ago, at that time, we also took shelter from the storm in the middle of the night in that old city, and it was already the second half of the night when we arrived here. At that time, the moon was very large, and you could see the three sand dunes from a distance, and they were indeed bigger than the one in front of you! ”

That is to say, from the Ming Dynasty to the first time the Sixth Master and his entourage went deep into the desert Forte nine years ago, these three sand dunes were all standing intact, but they have changed in the last nine years. If it's just the wind and sand, it obviously doesn't make sense!

"What dunes? It's been a long time, have you analyzed that Zi Chou Yinmao is here? Hei Niu said and walked over, pulled the map from Gu Yixin's hand, glanced at it, and said to me: "Lao Su, do you say that the person who drew the map has his brain in the sand?" ”

I was stunned for a moment, and asked inexplicably, "Why did Master Niu say this?" ”

The black bull pointed to the three sand dunes on the map and said, "Using sand dunes as road signs in the desert is just fucking fun!" What's the most volatile thing in the desert? Sand! What are the dunes made of? Sand! Use ever-changing sand to make an unchanging landmark, do you say that the person who drew the map is sick? ”

I suddenly caught an important message in the Black Bull's words, and this information was probably the reason for the change in the three sand dunes! It's just that I can't think of going up at once.

A flash of inspiration flashed in my mind, and I looked at Gu Yixin and found that she was also looking at me with embarrassed eyes, and her eyes were full of epiphany surprise.

"It's not sand!" Gu Yixin and I said in unison!

The people around us looked at us inexplicably, their faces full of question marks.

I smiled at Gu Yixin, excited to find the answer, and at the same time, I also felt the subtle pleasure of having a soul.

The corners of Gu Yixin's eyebrows rose, and he explained: "Those three are not sand dunes, it is very likely that they are an extension of the Danxia landform, deep in the desert here, under the action of the wind and sand accumulated over the years, the outside of the three sand dunes is covered with gravel, but their interior is actually rock!" That's why they're used as landmarks on parchment maps. ”

The sixth master was puzzled: "Miss Gu, if the inside of the sand dunes is rocky......"

Without waiting for the sixth master to finish asking, Hei Niu couldn't wait to interrupt him and asked, "If it's a rock, it won't change!" How is this missing two out of thin air? ”

Gu Yixin smiled and looked at me, the wind blew the sand scarf she tied around her neck, caressing her fair face, I found that her confident appearance was very moving, like a woman who responds to every call.

I explained: "There is only one reason why the three rocky sand dunes have changed dramatically in just nine years, and that is man-made! ”

Gu Yixin smiled and nodded, obviously what I said happened to be what she thought.

Hei Niu was stunned for a moment and asked, "Old Su, do you mean that someone blew up the two sand dunes on the other side?" ”

Without waiting for me to answer, Ah Biao blurted out and scolded: "Damn! Whoever is idle has a sore egg, why did you blow up the sand dunes! ”

The sixth master looked frightened, and said to himself: "Could it be ...... Could it be that someone knows the road map of the Sand Sea Hades Palace! Want to break our road signs? ”