At noon the next day, in the earthfire chamber.
Wang Yu and the other two sat cross-legged beside the massive cauldron, each pressing one palm against a cauldron leg, making the flames in its three dragon-headed handles grow somewhat thicker.
Above the massive cauldron, the originally white little Artifact Embryo sword now glowed faintly red.
Beside the cauldron, the black-robed elder sat cross-legged on a yellow cushion, forming a seal with one hand while chanting under his breath.
Suddenly, he raised his hand and sent a spell seal toward the chamber ceiling.
Bang!
A large hole suddenly opened in the ceiling, and a mechanical bracket slowly extended from it, with two gleaming bronze mirrors mounted at its tip.
Master Sun shook his sleeve, sending two white crystals flying out. In a flash, they vanished into the bronze mirrors.
The next moment, the two bronze mirrors trembled slightly, each emitting a beam of white light. One enveloped the Artifact Embryo sword above the cauldron, while the other struck the opposite stone wall.
An image of a massive sword, magnified more than tenfold, immediately appeared clearly on the stone wall.
Wang Yu was rather surprised by the sight.
None of those Artifact Refining notebooks mentioned this thing. Could it be one of Master Sun's exclusive secret techniques?
At the same time, the black-robed elder turned his hand over again and took a yellow gourd and a purple Round Bowl from inside his robes.
It was unclear what material the purple Round Bowl was made of. Without casting any spell, the elder merely placed it before him, and it hovered motionlessly in the air.
Next, the elder picked up the gourd and poured a silver liquid into the bowl. After putting the gourd away, he took out a pitch-black magical artifact shaped like