In a short while, the original wall of 150 by 150 was upgraded to a wall of 250 by 250.
At the same time, the thickness of the wall increased from about two meters to two meters and thirty centimeters!
The altar within the city wall grew somewhat larger and more mysterious.
Meanwhile, the attributes of these two buildings appeared before Dean McKenzie.
...
Building: Wall
Level: Level 1
Fixed Defense: 1 Trillion
Energy Defense: 100 Trillion
Next upgrade requires materials: 15622/20000 (Stone) 8762/10000 (Wood)
...
Building: Guardian Altar
Level: Level 1
Energy Defense: 1000 Trillion
Next upgrade requires materials: 8762/20000 (Wood), 15622/10000 (Stone)
...
Dean McKenzie glanced at the attributes of these two buildings, immediately lost interest, but Old Six became enthusiastic, took out a monocle from somewhere and put it on, and fetched a magnifying glass to examine the wall and the Guardian Altar tirelessly.