Guzheng

"Who do you think is up next?" Annabeth asked as she pulled back a few stray strands of her long, straight, black hair. 

"I'm not quite sure, my lady," Doe sighed, her hands reaching her master's face as she applied eye makeup.

"It's one of my sisters," Annabeth sighed, her vice quite confident in her choice. 

"It's one of your sisters? What makes you think so?" Doe cocked her head to the side. 

"Did you hear the direction the heels were coming from?" Annabeth asked.

Doe froze for a second, trying to recall what she heard. She continues her makeup when she does, "It seemed to come from the… left of us?"

Annabeth snapped her finger and grinned, "Exactly, and what direction did you see my sisters go to before we entered this room?"

Doe's eyes brightened when she figured it out, "Ah! It was left right?"

Annabeth nodded her head, "I'm quite sure it has to be one of my sisters."