The metal doors of the underground warehouse were only opened from the outside after Yan Fei piloted the Drone Avatar up to fifty meters above the underground warehouse. A group of American soldiers fully clad and decked out in gas masks came storming in from the outside.
But by this time, there was no sign of the invader inside the disheveled warehouse. Glass shards littered the ground, and the stone holes in the rock walls were empty—the prized remains of the mysterious aircraft had vanished. A massive hole had appeared in the ceiling and wall above, leading into the dark unknown and occasionally dropping mud and sand...
In the center of the warehouse lay a neatly stacked pile of explosives that looked to weigh several dozen tons. Directly above the explosives was a small, trigger-activated timing device, which was still flashing a red light. As the device sensed a large number of personnel entering, the light flashed more urgently.
