Disappointed at how many points her House has lost since this class had started, Ariadne figured she should, at least, attempt to answer the question. 'I suppose there is a separation between good and bad magic, the Dark Arts being understood as the latter, but as there is a thin line between what is good or bad, right or wrong, there can't be any clear distinction between the two forms of magic. Therefore, I think we should consider specific rather than general situations to describe Dark Magic. The purpose with which magic is used can be a reliable indicator of whether it is Dark magic or not.' Silence. Well, she tried.