She nodded to him in response to his warning about the mirror. She followed him, and when the monsters attacked, she used her cane (which had a heavy brass handle) to club the ones that came too close to her or Alucard. For the last group of monsters that were crowded together, Beatrice took out a cylindrical vial full of a liquid chemical compound (closed with a cork), and after shaking it, she threw it at the monsters. The compound exploded as a small bomb and killed the large group of monsters. Only the charred remains of the monsters were left.