Firefly Glen The more I see I understand

Hydra watched, dutiful and silent and composed, interested in this exchange. Her father dealt with his enemy in a way Hydra assumed was appropriate, though the exchange had grown a little dull. Still she was patient and still, practicing her stillness and her patience. She noted Alya's transformation, and Lyra held herself well. Intuitively, Hydra watched her father for any cues of right or wrong... but he only addressed this stranger. 

But as her father next spoke, Hydra could not help but grin at his words—her age, betrayed by her immature humor—and his movements inspired a ripple effect. Hydra, who had been cold and indifferent otherwise, moved to rigid attention. And when his father moved, Hydra sprung forward, ahead of her two sisters and snarling that they hurry up!, though the wave of her plume expressed that they were playing, as ever.