When William first saw the Dark Moon Tower, the "Moon Transformation Disease" from Lorrian had already begun to respond within him.
Now, through his understanding of the circular stone door's design, William deepened his understanding of the City Lord, who had a unique understanding of and an almost obsessive love for the concept of the "Moon".
He even studied and explored the universe and stars for the sake of the Moon.
Moreover, in the design of the door, he made the "Moon" the center of the universe, seeing it as the starting point of all stars and things.
Such a unique mouse, William truly wanted to understand more deeply... That's why he chose to ignore the dangers of the Abyss and try to communicate with the other party.
All William had to do was "take a gamble".
