Charles initially thought that they would have to use tremendous efforts to scale the walls. However, after a brief search, he found several doors at the base of the walls. 1

It appeared that these towering walls were not meant to keep humans out.1

Charles slightly waved his hand, signaling his crew to follow him as they ventured into the island that was structured like a fortress.0

The moment Charles and his crew emerged from the tunnels that burrowed through the walls, they were taken aback by the sight before them.0

If he hadn't just been at sea a few minutes ago, he would have thought that he had returned to the surface world.0

On the other side of the wall, an array of modern buildings were neatly arranged in rows. Apart from towering skyscrapers, there were also fast food joints, cellphone shops, fashion boutiques...0