Hao Qi also looked toward the center of the hidden campsite. Several rocks had been stacked there to form a fire pit where they could build a fire to keep warm, roast food, and so on. The rock barrier also prevented the flames from exposing their position. The only minor drawback was that some smoke tended to linger in the hidden campsite, but that was a trivial issue. The campfire pit was precisely what Yun Qingqing was referring to. The remnants and ashes left in the fire pit looked exceptionally thick, as if they were the traces of a fire that had burned for days or even longer.
"Er... we've been gathering fuel ever since we set up camp—some dry moss, residual branches of subterranean plants, and we even found some combustible minerals... So far, it has only burned for about six or seven hours. Could it be that the fuel here burns down completely and leaves a lot of residue?" Hao Qi said, looking puzzled.
Yun Qingqing shook her head. "I don't know, but this situation is too bizarre. Realistically speaking, this kind of thing shouldn't happen. After all, the ashes here are far too thick—they might even exceed the total volume of the fuel we added. Besides, I have no recollection of when I ever prepared such a piece of animal skin, nor when I wrote these characters and markings on it. It's very strange..."
Chapter 151