A/N: Yep I've caught the great drabble flu of 2011. This one is just Arthur being concerned by Merlin's unexplainable knowledge of magic. He doesn't actually know Merlin has magic.
Disclaimer: I do not own Merlin
Evil: Morally wrong or bad.
Another day saved. Another threat defeated all thanks to a clumsy manservant with an unexpected knowledge of magic.
"Merlin, your knowledge of magic concerns me." Arthur said. "I don't think it's safe for you to read any more books." Arthur didn't really know where Merlin learned these things, he suspected Gaius had something to do with it.
Merlin snorted. "Really Arthur you're concerned for my safety?"
"I mean it Merlin. Today your knowledge helped, but magic is evil. Stay away from it."
"Define evil for me sire." Arthur didn't even need to hear Merlin's clipped tone to know he was irritated with him. The use of a title was enough.
"It's harmful Merlin, do you understand that or do you need me to use even smaller words?"
"Harmful sire? Like that windstorm that harmed the bandits attacking Ealdor. I suppose the bandits would say it was evil."
"It corrupts Merlin, stop trying to defend magic!"
"Hmm, yes, it corrupts alright, like that unicorn." Merlin continued in a mocking tone "Oh yes that unicorn sure was evil. I'm afraid sire I still don't understand evil."
"Evil," Arthur began in a clipped tone, "Is something that can get my best friend killed, so shut up before someone hears you."
"Well if you insist Arthur." Merlin said but it lacked any of his previous tone. Don't worry Arthur I don't plan on losing my head