Inside the room.
The broken wood block in Yang Tian's hand emitted a strong light.
Yet this light was very gentle.
"Could this really be a treasure?"
Yang Tian used his Divine Sense to probe into the broken wood block and felt a vast Spiritual Breath.
This Spiritual Breath was like an ocean.
Originally, this broken wood block was placed in the Sand Demon Treasure Vault, without any Spirit Breath Wave.
Even the Sand Demon King thought it was trash.
But when the holy Sword Qi inside Yang Tian flowed into the broken wood block, a hidden oceanic breath inside the block emerged.
"Such a vast Spiritual Breath, my Dantian's Spiritual Breath is probably only one ten-thousandth of it!"
Yang Tian was extremely surprised.
One must know, for a cultivator, the most important part is the Spiritual Breath in the Dantian.
The higher the level of the cultivator, the larger the Dantian, and the more immense the Spiritual Breath inside.
