Frenemies

I have been cotinuing to read Harry Potter and the Deathly Hallows, and some very intense stuff has been happening. Within the last chapter I read, Harry went back to visit the place he was born in hopes of finding a Horcrux, or a clue to one. Instead, he came apon Voldemort's very own snake disguised as famed historian Bathilda Bagshot. Harry was seeking Bathilda's advice and willingly followed the imposter into her house, but soon enough the great snake, Nagini, shed his cover and attacked Harry. Luckily enough Harry and his friend Hermione escaped and fled the city. This chapter really opened my eyes to the idea of nothing being like what it seems. I'm sure no one I know is really a snake in disguise, but who knows which people in power of our society, are really a wolf in sheeps clothing. Who knows which friends will turn out to be traitors? And who knows which hero's are villians in disguise?