Although Hunter was a scholar, his field of study was engineering machinery, whose practical applications mainly involved all manner of massive siege engines.
As a result, he had done quite a bit of research on city walls.
The walls before him made him frown deeply.
Who was responsible for Castel's engineering designs? This was far too poor, wasn't it?
The very direction of these walls' construction was wrong. Built lengthwise, what could they possibly defend against?
Castel was an island, after all, and its enemies came from outside. These walls were not even positioned across the enemy's path.
Besides, the walls themselves were improperly designed.
Generally speaking, city walls were trapezoidal, narrow at the top and wide at the bottom.
Such a structure was naturally stable, more steadfast and reliable against enemy attacks. Even if breached, it was much easier to patch up temporarily.
Yet Castel's walls were equally wide at the top and bottom, with trees planted all along their crests. What kind of...
Hm?
Hunter suddenly froze.
Why were trees planted atop the walls?
Looking more closely, the walls seemed absurdly wide. Several carriages could travel side by side on top of them. Though he could not see clearly from the train below, they were indeed somewhat different from ordinary city walls.
There were no battlements, firing slits, or towers whatsoever. Instead, they were lush and verdant, like the hanging gardens described in books.
Hunter's confusion did not last long. Soon, he saw people picking wheat grains from the trees.
Hunter rubbed his eyes in bewilderment.
Rye "trees" several people tall were being propped up and cut down with long poles. The workers stood far away, carefully avoiding the black substance flowing from the severed ends.
They then plucked off fist-sized wheat grains and tossed them down from