Caroline, a newly turned vampire, awakens in the hospital craving blood. Tyler catches Mason searching for a family heirloom, a moonstone. At the carnival, Damon compels a boy named Carter into picking a fight with Tyler to provoke Tyler's bursts of anger. Mason breaks up the fight using his abilities, proving that he is a werewolf. Caroline confronts Damon about his abusive treatment, and he realizes that she is a vampire. He alerts Elena and Stefan as a ravenous Caroline drains Carter. Stefan