Her eyes glint dangerously for a moment in a quick flash of disbelief, but it fades just as soon, particularly when her gaze comes to rest upon the other woman's wand, still idle at her side. Bellatrix does not lower her own - not just yet - but her hold on it slackens, if only a little.

"From when?"

It's lucky, then, that Bellatrix has had some experience with this, though it's only been mild.