They're all bad people

"Can't leave? What do you mean?" Halcyon furrowed his eyebrows, asking solemnly.

"Exactly what I said. We can't leave. After arriving at the Bright Red Mountain Peak, when we wanted to leave, we were blocked by a strong power. We couldn't take a single step out of here." Zhou Lan said, "We realised the situation was dire when we reached this place, and it's not that we didn't think of leaving, but that we couldn't use the teleportation array. We also went to the edge of the boundary, but although the boundary was right in front of us, we couldn't take a single step.

"This should be the ghost clansmen messing around, right?" Sima You Yue said 

"This wasn't there before." Blue Blade said, "Didn't people come and go before? Although we didn't get all the information, it's still better to leave. However, we can't even leave right now."