Bei Mingyuan grunted in acknowledgment and continued carving the characters with his head lowered.
It was unclear what kind of stone the ancient tomb was made of. Although Bei Mingyuan wasn't using any tools, tracing the characters with just his finger, his power was so immense that infusing his fingertip with Mana made it no different from a chisel or an axe.
Even so, he still had to trace each character several times before it became clearly visible. Of course, he also didn't dare use too much power, for fear the characters might shatter.
He had to complete this massive area, filled with so many symbols and words, all by himself, so he was exhausted every day.
