Mana Core

His mana core look a little different now that he had fully refined his body. It looked tough like stone and the strange patterns that had already been on it looked more defined. The crack was still there, but he could sense that it was closer to being closed now. He decided to consult the book on what to do now since that was his next step. He still had the rest of the day, but he was unsure if that would be enough time to fix his cracked core.

"The process of fixing a cracked core can be initiated after the third step has been reach. To do so, draw mana into the core, which should have begun to heal on its own to some extent. Once the core is filled, use the mana to create a patch over the crack. Then use the core refining technique to compress the core. As the core is compressed, the crack will close up. The only disadvantage to this is that the core will become much smaller due to the compression. A word of caution, after the core is healed, be wary