565 564. Tree Bluer Than Sea 

Sylvester followed the two in while keeping his senses sharp. As he had expected, the Blue Leaves building was in the middle of the towering skyscrapers. The building was not a skyscraper, however. It looked more like a simple block-like structure with over a dozen floors.

The entrance of the building alone was many meters high, and the moment they walked into it, Sylvester felt the airiness. The ceiling was so high that he could swear he noticed a few birds flying. It was possible, however, as the gigantic hall spanned the entire floor area, and plenty of small ponds, trees, and bushes decorated the marble-laden floor. The area bustled with armored city guards, and other staffers busied themselves—from Beastkins to dwarves or more. 

They walked over to what seemed like an elevator, a gigantic one at that. And in all likelihood, it was operated by some slaves placed somewhere, turning the wheels.