What else did you tell him?
Nothing! Just the seven names.
Just excellent choices all around on Delphine’s line. Her voice was so desperate and apologetic on the “Nothing! Just the seven names.” bit but then there was that pause for Kira, like she’s offering her? And I’m 95% sure that it was because she wants to play it as her final card, to show Cosima that she really is on her side, look at this vital, sensitive information she held back! But there’s that edge of scientific excitement that creeps in, and it’s so possible to read it as a threat. Which, in her frame of mind, how is Cosima not going to?