A Newfound Horror

I am Dark...evil...mischevious. I like to cause Havoc...destruction...fear. I am Invisible...quiet..stealthy. I go Unoticed...unheard...unanticipated I attack the Young...weak...nieve I look just like you...your friends...your family I walk among the people you know....people you like...people you hate I act normal...sane...innocent You think I am nice...friendly...cheerful You think I like humans...animals...children You think My activities are Singing...dancing...laughing You think I have Wings...I am small...I am helpless You think I am Beautiful...nice...helpful I am actually Beautiful...deadly...predatory I can make men... Fall in love...do my every bidding...go mad What am I? A faery