They tried doors.
Not systematically—the group had fractured somewhat in the question-answering process, and different factions were operating on different theories, and the theories were wrong in the ways that theories are wrong when the information being used to generate them was assembled by someone other than the man who built the maze.
The first door opened onto a pressure formation that activated the moment a foot crossed the threshold.
The cultivator who opened it was one of Liang's five remaining disciples.
He crossed the threshold.
The chamber behind the door said something architectural about pressure and intent.
He came back out in pieces.
[Evil Points: +8]
"That door," Cang said, "doesn't lead anywhere useful."
The group stared at what was left of the disciple.
"You could have said that before," Liang said.
"You could have asked," Cang said.
Liang's jaw tightened. "Do you know which door—"
"No," Cang said.
