Headache.
Cao Zhen continued to dig the vein in front of him. If he could use Immortal energy, this vein would be easy to mine. However, right now, without using Immortal energy, the mining was difficult.
Just as he had excavated about halfway through the vein, a series of low rumbling sounds came from behind him.
He had observed earlier that there were about fifty Giant Beastkin below. However, with such a number charging, it felt like a thousand cavalry charging forward, causing the ground to tremble continuously.
Cao Zhen quickly turned around, his Longsword appearing in his hand. He watched as the Giant Beastkin charged up the mountain, lifted his foot, and suddenly launched himself forward, transforming into a streak of light, shooting out instantly.
His feet rapidly scraped against the ground, leaving two distinct marks on it.
