Fang Ling pondered for a while, still had no thoughts, and suddenly felt that his face was a little hot, he instinctively turned his head, only to find that this hot feeling turned out to be the afterglow of the sun in the west, and the red light shone from afar, reflecting everything here red.

Originally, these rocks have no color, so there is no obvious feeling when the sun shines directly, but at this time, the sun is obliquely shining, and it shows a piece of red.

The red road, the position of the sun, and combined with the map of this stone forest, Fang Ling's eyes suddenly lit up, as if he had suddenly discovered something, and his eyes fell on the map again.

Everything on the map is pitch black, except for the red fork that indicates the location of the Lost City, which doesn't seem strange on the surface, and could easily be mistaken as a deliberate attempt to show the location.

However, if the red color is not meant to highlight the position, but rather the red color of the road, then the interpretation is completely different!

Tulan Motuo, who had been paying attention to Fang Ling, sensitively noticed the change in his expression, and couldn't help but ask, "Your Highness, have you found something?"

Fang Ling nodded, and the Shaman Witch King couldn't help but urge with joy on his face: "Your Highness, come and listen." ”

Everyone's eyes were focused on the young man, wanting to hear what he had discovered, Fang Ling drew all the way along the ground, and then pointed to the sun in the distance, and said, "I don't know if you have noticed that this straight line happens to fall in the direction of the sun's setting." ”

Everyone suddenly sighed, turned their heads and saw that the sun was really at the end of this road, and it might not be strange if it was placed elsewhere, but in this case, it made people wonder.

Turanmoto suddenly realized: "What does Your Highness mean that the method of opening the Lost City has something to do with the sun?"

Fang Ling bowed slightly: "The reason why the red cross is drawn on the map is not simply to highlight the location, but to metaphorize that in order to open the lost city, it is necessary to use the sun. ”

Chahankhrei immediately asked, "And what is this key for?"

Fang Ling muttered, "If you want to know this question, I'm afraid that you won't know the purpose of the key until sunset, when both roads are reflected in red light." ”

Everyone couldn't help but secretly praise Fang Ling's cleverness, although it was only speculation so far, but it was indeed reasonable to explain, and it did point out a path for the people who were at a loss now.

So, the crowd began to disperse around, with several people standing at the ends of each side of the road, watching if the road was illuminated by red light, while Fang Ling stood alone at the intersection of the road, waiting for the time to come.

As the sun gradually set, the crossroads were rendered with deeper and deeper red light, and when the end of the road was also shrouded in a red light, Fang Ling picked up the key and pointed it at the sun.

Three rays of sunlight shone through the three holes in the key, falling on the bare rock on the opposite side as if magnified, and Fang Ling slowly moved the key, allowing these three rays of light to move on the nearby rock.