Something about the dark arts?

Kind of an easy question. For Jennifer, anyway. Dark arts were bits of magic magiked up by evil people. Illegal bits of magic. And then some good guys, aurors or something, would come along and fix everything. Everything was fine again and it was all in the Prophet the next week. Yeah.

"It's bad, illegal magic, magiked up by bad witches and wizards. Like the, uh, unforgivable curse thingimabobs." Quite well summed up if Jen did say so herself.