C59 Master found

"Ding ling ling …" Following a series of crisp sounds, I magically took out a bell from my backpack.

As I shook the bell with my hand, there was a different sound, and it was this different sound that led to a faint shadow on the stairs, running ahead of us.

"Heh, let's see where you can run to!" I knew that this was the ghost that had set us up