Entering the second floor, the first thing that caught her eye was a row of ancient wooden bookshelves. The difference here was the complete absence of books on those shelves. They were all empty.
Perhaps all the books were removed because of the plan to close off the second floor.
Moreover, a thick layer of dust had settled on the floor and on the shelves, indicating that no one had cleaned it for a very long time.
Qin Sisi stepped past the bookshelves and a vintage grand piano, positioned against the wall, came into her view.
The piano must have produced the sound she heard earlier!
Legend had it that those who once tried to move the piano were injured by a suddenly falling bookshelf, adding an eerie aura to that grand piano.
Yet now, only a worn-out stool stood before the piano, not a soul in sight.