Chen Xuan had guessed that the monks from the Soul Flying Sect would follow them into the tunnel, but he could not sense the presence of the seven monks behind them. This was because the void tunnel contained a type of restriction that blocked spiritual sense.
Although Nangong and the other six appeared to have followed them in immediately, they had actually entered a separate "parallel tunnel," where they were similarly unable to sense Chen Xuan’s presence. This was a remarkable restriction; if two groups entered one after another, they would be assigned to parallel tunnels, ensuring fairness in navigating the trial.
Watching the brilliant light and shadows retreating rapidly before them, E Yan frowned and said, "There is no telling where this void tunnel leads. Everything ahead is obscured."
Chapter 4856