Newly manifested ghosts are little more than a repeated performance of their moment of creation. The Netherworld is filled with screaming, translucent children and half-formed apparitions trapped in hysterical laughter. When the outburst that creates a ghost is extraordinarily powerful, it might also manifest with the power to travel or speak with its creator’s voice.
Ghosts are a side effect of a world with willful creatures. Observing a ghost gives it cohesion and substance; they gather attention into themselves to continue existing. Attention is the ghost’s life essence. All are driven by the existential craving for it.
When meeting a ghost, the beginning of the conversation is usually somewhat repetitive. They perform their moment and nothing else. However, it takes shape as one continues to pay it deliberate attention—it remembers things about “who it is”. The memories and mannerisms are accurate copies, as every ghost forms with the full mind of its creator. It simply lacks the means to access it.
Seeking a rival’s ghost to steal secrets is usually a waste of time. Even with lots of attention, an afterimage in the Netherworld is like a version of the person with a severe and single-minded addiction. Everything a ghost does is attention-seeking behavior, and if a ghost knows something an observer wants, it also knows it can get more attention by keeping it to themselves. Moreover, a person’s copy is no more likely to tell their secrets than the genuine article. Ghosts rarely betray their true selves, even when it would make sense to do so.