Darius' former stockpile of 49 SP quickly dwindled down to 5 SP. He had wanted to increase some other skills by a grade, like Swap to level 41 so it would have the Advanced-grade standard and Spawn, so it would become Intermediate grade.
However, after having invested 39 points into Swap and not yet manually testing its utility, Darius was understandably more than a little hesitant to invest more. Anyway, that could be done later.
As for Spawn, it was the skill that spawned his two Skeletons turned Vampires, Mikey and Joneson. The fellows were still over at Thanatos' place doing whatever it was he wanted them to do, and they still had 3 more years to go on their indenture.
Darius sighed. He then checked the rest of his skills to perhaps find something to invest these 5 SP. Truthfully, now that he had hit the Adept stage, he was beginning to feel the pinch Caesar warned him about.