Obsidian sat in the shadows, watching the two sisters from a distance, she sighed. Just a barely audible cluck of her tongue was heard and she wanted to stretch out her wings, so very much, but the chains were wrapped around them tightly. She let out a groan of fustration and turned around as she slammed a fist against the concrete wall. It cracked only a small crack and her knuckles became red with blood. She stared at her knuckles in fascination, falling silent once again, she had to think of a plan.