True mana (Final part)

[You see, whenever I go through an upgrade I unlock more memories from the All-father's main consciousness.] This time the system was talking directly to the trio without needing Blake's help to convey the message.

[You know about the unknown energy the black fog produced, its real name is mana.] The system drew their attention to the 9 tubes in the other room.

"Huh?" The system's words totally confused the trio.

"If that is mana, then what do we use to cast out spells." Having gotten used to the system's 'special' way of explaining, Blake was the first to recover and ask the question which was on everyone's mind.

[Remember when I told you guys that the black fog converts mana to what I call the true mana, it's all wrong.] The system explained. [Just like every form of forbidden magic, the black fog is more destructive than we thought. It doesn't convert, rather it breaks down everything it comes in contact with to the lowest form of life, mana.]