The Colonial City of Karachi is surrounded by mountains on three sides, with an opening facing the plain.
The sky above the mountains on three sides is enveloped by a Defense Light Screen, while the opening is separated by a defense light screen that's several meters high and thousands of meters long, with only one entrance and exit.
After disembarking from the spaceship, David, accompanied by Yang Xiao and four guards, entered the valley entrance checkpoint. David took out a Jade Token, which served as an identity card for the base, as well as a pass to enter the colonial city.
At the entrance stood a dozen men in black cloaks and several dozen Iron Tower Guards.
One of the burly and tall men glanced at David, chuckled, and said:
"Station Chief Dai, you've arrived. No need to check, please come in."
"Thank you, Captain Lin."
David said, then gestured to Yang Xiao and the four guards behind him,
"These are my five attendants."
