Chương 548: Chapter 255: Underground Fissure_2

More than twenty minutes later, a loud engine roar came from the distant sky again. Yan Fei extended a mirror from the underground to use its reflective surface to observe the situation above and spotted five Apache armed helicopters approaching from a distance.

The five Apache armed helicopters did not make any superfluous maneuvers; they headed straight for Yan Fei's hiding place. After a few minutes, they hovered in the sky directly above Yan Fei, and the 20-millimeter naval cannons on the helicopters started to adjust and then aimed at the fissure where Yan Fei was hiding.

Seeing these Apache armed helicopters targeting him with their onboard weapons, Yan Fei felt a jolt in his heart. What on earth was going on?