If the hotel lobby appeared slightly dark, the staircase William followed the attendant to was nearly pitch black, devoid of any form of illumination.
Seeing William pause, the rat attendant explained:
"Please don't mind, most Rat people prefer dark, damp environments, which is why we don't provide lighting in the hotel's 'corridor' areas and maintain their natural darkness.
There are many similar places inside Rat City, we hope you can get used to it.
Please follow me, your room is on the fourth floor."
At this moment, a voice from behind called out, "teacher, do you need me to provide illumination?"
"No need, when in Rome."
William intentionally kept the fact about a Candle Puppet, which cost a whole one hundred thousand, albeit at a discounted rate, through a perfect transformation by the Duke's Chamber of Commerce, hidden as it was bound to be a significant support for exploring the Abyss.