"The first nightmare is the collective nightmare that everyone is in together. That's the place the Grand Expedition believed to be the Abyss of Nightmare.
"It has three floors and nine zones. The previous Grand Expeditions have scouted the entire place, and they never found the World Core there.
"Hence, they believed the World Core was beyond the third floor.
"However…."
Ava swept her gaze around.
"We now know there is nothing beyond the third floor. That place is fake to keep them trapped.
"Even if there is something beyond the third floor, it's logical to believe Tartarus won't keep its Core there, since it can be targeted by the members of the Grand Expedition," Ava explained.
"You think there is another nightmare, and the World Core is in there?" Elizabeth questioned.
"Indeed, I do believe that. I can sense it with my Nightmare Affinity, and I believe Neo can do the same. Everyone caught above is going through a different, individual nightmare."