There's open suspicion on her eyes and Peony doesn't yet relinquish her branch. Strahd had a habit of making spawn of beautiful young women and they were just as dangerous when unarmed.

She waved a hand over the branch - casting the light cantrip - so that it lightened with a bright white light. And then she threw the branch in the no-mans land between them.

"Pick it up. If you aren't spawn, the light won't hurt you."