Caroline's about to ask how the hell Jenna's home is here when she watches her reach for her necklace and show her. Caroline's face freezes for a moment, and then she knows. Jewellery. Vervain. At least Jenna's being looked after. But does she know?

"Elena's here?" The answer would be no. And the question about how Jenna's house is here slips her mind momentarily. Caroline's face scrunches up as she says, "Katherine's here."