Burying Immortals?

That person of the Royal Sacred Sect who spoke to Qin Wentian earlier stood in front the crowd, pointing to the immortal palace and spoke to them, "This immortal palace has a very high probability that it was constructed by a true transcendent powerhouse. As for how powerful that senior was, I have no idea. But I can tell you all for sure that he was truly very strong, so strong that it exceeds the boundaries of your, and even my, imagination. In the palace, there’s no need to doubt that there will be many treasures such as immortal arts and immortal-ranked weapons within.