Inside the Immortal Mansion, the aura that the practitioners sensed was so immense that it even gave them the sensation of trembling before a True Immortal.
However, the continuous palaces and Immortal Peaks within the Immortal Mansion were only for the residence and cultivation of practitioners above the Nascent Soul stage and below that of a True Immortal; in principle, Immortals were not allowed to reside there.
Unless, it was a Half-Immortal who triggered an Immortal Tribulation here in an attempt to ascend to immortality.
But how could that be possible.
Without absolute certainty and proper preparation, who would dare to casually trigger an Immortal Tribulation? Moreover, inducing an Immortal Tribulation in the place where the Immortal Mansion practitioners reside is strictly prohibited by the Immortal Court.