Sookie Unleashes the Power Within (Season 2, Episode 10)
Everyone knew there was Something About Sookie: we'd heard her hearing other people's thoughts since the pilot and she had managed to gain the attraction of two very powerful vampires without seemingly any effort whatsoever. But it wasn't until the very end of Season Two that we got a glimpse that there was actually something there. Something in her blood, that is: Fairy blood. It was Maryann who first realized what Sookie was: as Maryann approached the height of her maenad power over Bon Temps and the two got into a conflict, light shot from Sookie's hands as she pushed Maryann off of her. The behavior would only expand in its influence as the seasons progressed – after taking a year off to recoup with her fairy godmother, Sookie returned to Bon Temps in season four to encounter an amnesia-riddled Eric (suffering due to Marnie's spell). Despite the many witch and vampire attempts to break the curse, it would be Sookie's fairy power that would emit the light that would shock Eric and shake off the curse during the witch/vampire showdown at the end of the season. The best part: Sookie still doesn't know the full extent of her powers. And neither do we.