Qi Long, Bai Yan, Yi Wen, and Su Hong had been looking at Fu Nie since he started absorbing the crystal core. Even though it was not obvious, there was a small fluctuation of power when he started absorbing it.
It was so small that ordinary people wouldn't have noticed at all. However, they were not ordinary people but trained soldiers. They would notice the slightest movement especially now that nowhere was safe.
Their vigilance had multiplied as they knew that with so much danger around them, a small distraction or mistake could cost them all their lives. So, to protect themselves and their comrades, they had to stay vigilant.
That was the reason they could detect something so insignificant. This also showed the superior ability of this group of soldiers.
They were elites among elites even though they were young. Their training had not been in vain. Unfortunately, their brothers didn't make it until now. This was a hurdle in their hearts that was going to be difficult to cross.