"Though I can't name this formation, based on what I know of formations, I can infer that the barrier covering several hundred li is probably made up of four separate arrays. The first is meant to defend against attacks from within. There are ten Profound Immortal powerhouses here, but even we couldn't break through the barrier by force."
"The second gathers the blue-green radiance, while also drawing an endless stream of it from outside. The third connects this place to the outside world. The fact that all you seniors were sent here must be because of that."
"The fourth barrier must be what links the other three together and makes them one?" Red Partridge Demon Immortal Juan Rong asked, a hint of doubt in her voice.
"Your insight is remarkable, senior." Lu Xiaotian nodded.
"It's not that my insight is remarkable. I did see a little of it at first, but my thoughts were a mess and I couldn't make sense of them. Hearing you explain it gave me considerable inspiration. Your attainments in formations are truly rare for someone so young. To spot the problem with this place's barrier at a glance, and do so without our noticing, is even more impressive."
Red Partridge Demon Immortal Juan Rong smiled warmly. Though she was praising Lu Xiaotian, she was really putting him on the spot. She clearly suspected there was more to his background than that of an ordinary True Immortal.
"Cats have their ways, and mice have theirs. I specialize in formations and barriers, and I admit I have a few tricks that ordinary people lack. But compared with my cultivation, it's nothing more than a minor, unorthodox skill—not something worth showing off." Lu Xiaotian modestly brushed it off.
"Come now, little friend, there's no need to be nervous.