C217 The core of the immortal mansion and the immortal-sealing formation

"Young Master Qin, why is this palace different from the others?"

Luo Chen stood by Qin Yu's side, looking at the rainbow colored light enveloping the palace, a trace of curiosity flashed past his eyes.

The buildings in the surrounding cities were all dilapidated. Only this one was still intact. It was truly strange.

"This isn't a palace