He had brought her to a warehouse on the island, empty and out of the way, probably not the first place the people who were looking for her would come to. He'd even grabbed a snack along the way for Elena so she could finish her transition: a young woman that was currently unconscious on the floor besides the girl.
As Elena woke, Stefan dodged the punch and laughed. "Are you what, Elena," he asked with a smirk. "Like me? Almost." He reached out, his fingers barely touching her cheek before he moved around her and went to the other girl, lifting her up and pushing her hair out of the way to show her neck. "You should eat. I brought her just for you."