Inevitable Ending

Exploration Stage: Laboratory
From: Martha
Description: How awful! I don't understand why I didn't feel the ominous atmosphere of this place. Is it because of the anomalies located here? In any case, I need to perform a purification ritual. Let's finish the investigation as soon as possible. Find something that indicates the direction of the Master's future work.
Completed: Oh, you found the Ghost Spinning Top. It disappears with a quick spin, and what's more, it can spin for a very long time, but not forever. Does this mean the Master achieved effects that were long, but not everlasting?