With their level of cultivation, it was impossible for them to be tracked by cultivators without being detected, unless it was a Nascent Soul Ancestor doing the tracking. But if a Nascent Soul Ancestor was indeed tracking them, he would have rather dealt with them on the spot.
Now trapped inside the cave dwelling, they had no possibility of escape.
"You are disciples of Venerable Huijing, but it doesn't matter. I've never gotten along with Huijing, so what could he do if I slew his two disciples?" Ancestor Lu had no intention of forming any rapport with the two juniors, and he spoke without any regard for consequences.
Li Yuanba felt it even more profoundly, Ancestor Lu stood in the air; a terrifying energy had already enveloped the entire mountain.
This was not a formation but rather Ancestor Lu using his unparalleled strength to forcibly seal the entire mountain with spiritual power.