Aldrian and the twins flew for another five minutes before they finally saw a large city in the distance. The city was not much different from the cities in the First Heaven.
The city in front of them had eastern-style buildings, and they could see many towering structures rising into the sky. They could also sense the invisible barrier surrounding the city, one capable of detecting anything that passed through the skies above it.
With that barrier, anything flying through the air, even while invisible, would instantly be discovered by the city officials.
They stopped before the barrier and observed the city for a few moments. They could sense many powerful cultivators at Immortal Lord stage and even several at Immortal Overlord stage.
After observing the city for a moment, they shifted their attention toward the barrier itself.
"The barrier could detect disturbances in the different layers of space. Even a powerful Immortal Saint cannot evade this," Zarven said.
