Helena's eyes widened enormously and she made a faintly choking sound of surprise. She practically tripped over her own feet back pedaling away from the lart man who was most definitely holding a knife. She hadn't missed that. "What?" she asked, missing his barked question for a moment. She shook her head, the blades flipped. "I don't know," she told him, still sounding sort of breathless out of surprise. She pressed one slightly grubby hand to her chest as though trying to prevent her heart from flying away. "Who are you?" she asked, finding the wherewithall to demand an answer of her own.