These were the books he was told to read in his hospital time by his actual Master. He was instructed to ignore every other book, especially those recommended by "the wench" until he understood these ones inside out. Darius was now thoroughly invested in being a Spiritsmith, as he reckoned it to be the safest path to the peak. The boy's fear of pain in this regard was gone. Compared to absorbing an astral god, any growing pains from training would be easy.
When one enjoys something, it would be easier to get more into it. This applied even more so to Darius, who had the ability to single-mindedly focus on a single task. This naturally didn't need an explanation as to why.
The Praetorius curse was inactive when he was sick or injured beyond a certain level. At least according to his Master, he would be free of the curse temporarily during that duration. But not his hammer.
