Sophie felt deeply encouraged and resolved not to disappoint Alex's expectations.
While Alex was resting, she was still contemplating the construction and development of the city. Through observation, she realized that the resources consumed to upgrade from a town to a city were not much, but the resources required for further upgrades after reaching city level would skyrocket.
If conditions allowed, Alex even considered upgrading one of Sophie's or the Xiao siblings' castles to city level.
However, for now, the priority was Alex's own castle. After all, only by strengthening herself could she ensure the strength of everyone else.
[Blood Moon in the sky, darkness descends.]
The night sky cleared once again, and the black undead city seemed to blend into the darkness, with only the eerie red moonlight casting a faint outline of the city.