Madame Butterfly didn't head towards any other rooms, but with a single wave of her hand, two interlocking circular metal gears appeared in front of her.
Xu Huo had seen this kind of gear once before, a step closer to the core of Madame Butterfly's Spiritual World than a chain.
The two gears meshed and turned together, and with a few clicks, the rooms that had been growing outwards began to collapse towards her position from afar, and then the doors on all four sides of the room started to vanish, leaving only one.
She stepped forward and pushed open the door, but instead of the library corridor, a new spiral staircase appeared.
