Hermione skimmed the subsequent titles after the initial Blood and Water ritual. There were useful ones for bringing good fortune, healing bodies, and winning duels. But there were far more darker rituals referencing revenge and torture to be used on enemies. Rituals for control, influence, and notoriety. Even a ritual to raise the dead. The magic went far beyond the moral deviance of using Unforgivable Curses; the sorcerers engaging in Blood Magic became the curses. 