Just as they killed the last Orc, Legolas looked around at the dead bodies, before glancing towards Yavanna. Despite the fact that their goal was to figure out what the Orcs were up to, something told the Elven Prince that what he did was to return the favor for the girl who saved his life back at Mirkwood. Sheathing his daggers, his expression wasn't completely cold towards her this time; it looked almost like sympathy that was slightly apparent in his icy-blue eyes. 

"You killed them all", Bain gasped in astonishment. Hearing the boy's voice, Legolas tore his gaze away from the girl, though he was still itching to look back. He had to focus on the task at hand. "There are others. Tauriel, come", Legolas said to his comrade before beginning to leave.