Tang Hao looked at the tortoiseshell in the box with a burning gaze.
This was no longer a divine material. Generally speaking, divine materials were extremely rare metal materials, or eighth tribulation or ninth tribulation beast materials. For example, the large number of nine tribulation dragon bones and Phoenix Feathers he had exchanged in the treasure house were all divine materials.
However, this tortoiseshell was an immortal material of a higher grade, something that had fallen from the body of an immortal level creature.
He had only seen this kind of immortal material twice. The first time was in the ethereal immortal Palace, when the remnant soul of the perfected immortal Shangyang immortal had given him a few Phoenix Feathers, which were also immortal materials, things from an immortal-level Phoenix.
