'Then again, not everyone might learn this skill.'
Riya only learned how to make mana stone because she wanted to earn her own resources to make formation. If it was not necessary, many people would not bother learning about it because condensing mana stone took time. The time that they could spend meditating or doing other things.
So after thinking for a bit, it was not that surprising for Samuel not to know this skill.
Besides, while that mist had increased mana concentration, one needed a large amount of mist to make the mana stone. With the mist contaminated with virus, even Riya didn't dare to make the mana stone directly.
"Mana?" Ruby heard this term for the first time and looked at Sean with doubts. "You're not joking with me, right?"
There was no such thing in her entire life before. And now being told that there were something called mana in this world… Ruby was full of disbelief.
