Damon finds Caroline and Carter's corpse on the back of a flatbed at the edge of the fair grounds. Damon is sweet and solicitous, and stupid, because he flat-out tells Caroline he's going to kill her. Commercial.
Just as Damon is about to stake Caroline, Stefan Stealth Salvatores up and knocks the stake out of his hands. When Caroline sees Elena she freaks, saying Elena tried to kill her. Elena tells her that was Katherine, but Caroline can't understand why they look exactly alike. She screams for Elena to get away from her, and finally Stefan takes Caroline by the hand and tries to calm her and lead her away to wash the gallon of blood off her face. As they head in, Damon retrieves the stake and goes for Caroline again, but Elena puts herself between them. She waits for Damon to lower his stake. When he doesn't, Elena looks him in the eye and says, "Damon, she's my friend." He can't resist her. He can attempt to murder her brother in front of her eyes, but he can't resist her. He lowers the stake and says, "Whatever happens, it's on you."
Just then Bonnie happens upon the scene. She sees Caroline's bloody face and tries to summon all her powers of denial, but when she grabs Caroline's arm, she knows the truth. Her friend is the evil dead. Caroline tries to get Bonnie to talk to her, but she's too weepy and Bonnie is in shock. Finally, Stefan leads Caroline inside the school and into a bathroom to clean her up. He explains the heightened emotions common to transition, even as she freaks about being a murderer. I'm really liking Caroline's mixed reaction to her new condition. She's repulsed and exhilarated and Candice Accola is doing a hell of a job. When Caroline looks in the mirror, she starts to vamp out again, so Stefan teaches her how to bury the feeling by breathing through it. Lamaze, it's not just for mothers in transition any more.
Outside, Bonnie, Elena and Damon are all gathered around the flatbed. It kind of cracks me up that they're hanging around Carter's body like that, when they're so out in the open. Shouldn't Damon Stealth-Salvatore it away somewhere before someone sees it? When Damon's a little too cavalier for Bonnie, she strikes him with another mystical migraine. He crumples to the ground in pain as Elena looks on -- stunned. Bonnie then turns on a nearby hose -- with her freaking mind. The water rolls toward Damon and I can't help but remember what Bonnie did to Tiki at the carwash -- and that was just because Tiki told her to sweep up! Bonnie (who rightly AND wrongly holds Damon responsible for so much) remembers, too, so she turns the stream of water into fire. As the flames engulf Damon he screams and tries to pound them out. Elena yells for Bonnie to stop, but she can't/won't/doesn't until Elena leaps through the flames and grabs her by the arms. She berates Elena for stopping her and asks why. Elena says simply, "Because this isn't us. Bonnie, this can't be us." Bonnie's barely keeping it together, so Elena puts her arms around her and leads her off, leaving Damon alone and moaning on the pavement. Bonnie's being a bit ridiculous to blame Damon for everything EVARRRRR, but he's done enough to Caroline, Vicki, Lexi, Jeremy and who knows who else that I think it's important we see him suffer.