Bellatrix, as far as she's aware, is not lying. Perhaps that's why it rings so concerning - for all she is, she's never been much of a liar. She's never had reason to, after all; when has she ever been anything but proud and sure, even in the face of the Ministry. The face of Azkaban and the Dementors, and all the tortures they imply.

"I don't... know. Not yet."

Her smile widens as she takes another step back from Narcissa, hand defaulting to her wand for a second time. "But those who are won't hesitate to show themselves, will they?"

Her intentions are quite obvious, then, and only painted moreso when she lifts the unfamiliar wand skyward, eyes still ablaze with sheer, unfounded delight.