Duskfire Glacier come on, dark star

A rippling growl accompanied the sinking of teeth into pale flesh until she tasted a familiar copper tang. Many nights had she envisioned this exact scenario in her head, had felt the lifeblood drain from her kin. Her throat was open - it would be easy. Her jaws clamped harder until her vision swam with tears. 

She could not do it.

Pulling back with a shaky breath, her large paws were quick to unbalance her sister until she lay at her feet. If Tulugak had noticed her hesitation, she made no move to act on it.

She was weak, pathetic. Just like you. 

"Why do you not fight, sister?"