章 158: Strange Crystal

Underground Mines,

"Old Book, it looks like you are proficient in mining now, eh? Not straining yourself anymore." Old Cook commented, as the clinks and clanks of pickaxes hitting hard earthen minerals could be heard resounding throughout the Underground.

"You are not bad yourself either, Old Cook." Old Book said smugly.

It's only been a few days of mining, but they had all cultivated a masculine spirit that could only be found from doing strenuous labor. It was startling and earthshaking, how much these ordinary folks undergone in such a short period.

Such changes were attributed to their simple cultivation. Although none of them had achieved the first layer of Body Tempering Realm, they could already be considered cultivators.

"Anyhow, why are we also mining these strange crystals? I thought we only need metallic ores."