Chen Yihan spoke up, interrupting my thoughts. "Here's my theory. Your soul is special. This isn't just a matter of ability; it may simply be a side effect of your ability. You can move freely through the entire river of time, but no matter how special you are, you still have only one soul."
"I can't appear in two carriages of the same train at once, let alone on two parallel trains at the same time," I said.
Chen Yihan looked at me.
I remembered coming up with that analogy while discussing the future world with Wu Ling.
The entrances and exits to those otherworldly spaces were like fixed platforms.
The countless timelines were like trains running parallel in the same direction.
Some ghosts had seized the opportunity to jump from one train to another, and in doing so had returned from the future to the past.
My ability to use dreams seemed to have a similar effect. The only difference was that I didn't need those platforms. I needed the souls of the dead as coordinates.
"There has to be another me, or something else must have taken my place," I continued.
If that was the case, it was hard to define exactly what that something was.
Everything had come full circle.
"I still think it was the Ghost King. It seized the opportunity and took over my body." As I spoke, I looked at Chen Yihan. "I understand what you mean. You just don't know that there are passages in this world connecting the past and the future. We didn't create the future. Well... I should say, we've already created it; we just haven't reached that point yet."
"Are you talking about the entrances and exits to those otherworldly spaces?" Chen Yihan asked.
I nodded.
The problem Chen