[The fact that Chara frames it as a 'chance' is already plenty enticing. They're curious. They want to see what she'll do.

But she knows this move, too. Studying her. Waiting for an opening. So she slips the locket a little further away from them, but still visible, so they know what's at stake here.]

Tell me how you have k-knowledge of multiple timelines. How you and Frisk seem to understand multiple concurrent events.