Snowfur

Snowfur is a long hair white she-cat with blue eyes.

Secrets of the Clans
She is the dead sister of Bluestar who was said to be killed by a twoleg monster when she chased a ShadowClan cat out of ThunderClan. She is sad because she didn't get to live long enough to watch her son Whitestorm, known as Whitepaw, become a warrior. She is the cat chosen to take care of Bluestar's dieing kit, Mosskit, because she had left the living world as she had just left the nursery and knew how to take care of a kit.