The others: "…"
They all looked at Gu Xia Mo thoughtfully and felt that this man was surprisingly useful in his invention. It seemed that if he truly wanted to think about it, he could help them to create many things that was useful but would not be beyond cognition.
Like these things…
"Huh?" Yan Jin Nian was still confused.
She's a psychologist in her previous life and in this world, she didn't really participate in war like others. So even if Gu Xia Mo had explained so clearly, Yan Jin Nian still couldn't understand the significance of the invention that her husband made just now.
"To put it simply, you can sneak into the enemy's territory easily without the need to worry about the ember you're carrying died down or be found out by others," Long Qian Xing said. "After all, carrying a burning fire and walking in the forest, even if it's in the middle of the day, there's a chance that you will be found out."
