Part One: Tier-6 Viper City

From MC's perspective:

Time passed in the blink of an eye,

The bird monster crossed several regions and cities in two months. The next morning, fortunately, I got to see the destination.

A huge black wall came into view. The wall is many times higher than that of one in level-7 Baguva City. 

Suddenly, the bird monster slowed down its speed. I raised my eyebrows in confusion. Because I see there is no entrance gate to the city.

"Is it hidden?" I mumbled under my breath. 

Jonathan guided the monster to land slowly in front of the wall. There is nothing but empty land on the ground. 

Tud!

When the bird monster landed, I jumped off it and landed slowly on the ground. Right after, Jonathan landed. 

I raised my head and tried to look at the end of the wall. But the wall's height is extremely high. 

"It's not a city wall," Seeing the confusion on Zack's face, Jonathan said.