The dense gray fog, like a living creature, silently spread from the depths of the experimental area.
As the fog passed by, the lights went out one by one, and a layer of frost emitting a chill condensed on the alloy walls.
"Zz...zzzz..."
In the darkness, there was a burst of static interference.
A five-member tactical team was moving slowly in a standard diamond formation down the corridor towards the laboratory.
The specially made military boots on their feet stepped on the floor, making almost no sound.
Only the dull and rhythmic breathing from beneath their masks was particularly clear in this deathly quiet environment.
At the very front of the team, one member held a heavy riot shield in front of him.
Another member followed closely behind, extending a tactical probe out from the side of the shield towards the door.
The infrared thermal imaging mode of the lens clearly fed back the dark scene ahead to the display on his helmet visor.
