"Could it be that there's some kind of barrier here?" Lin Feng asked Lu Lu with a hint of curiosity.
"To be precise, it's actually a formation." Lu Lu nodded and continued explaining, "To prevent the leakage of spiritual energy, almost all the discovered hidden realms are equipped with very powerful spirit-gathering formations and illusion arrays. So, under normal circumstances, ordinary people can hardly discover the existence of these realms. Even using modern scientific detection methods, it would just seem as if the mountains are shrouded in mist, without any noticeable difference! You could say that these realms and the real world are two separate worlds. To use a trendy description, they're more like a parallel space, and the vegetation and species inside are vastly different from those in the outside world!"
"So, does that mean medicinal herbs that can't be found in the outside world can be found in these hidden realms?!" Lin Feng understood Lu Lu's point.
