Winterclan and the battle concord

The time is way before the original five clans Thunderclan Riverclan Shadowclan Windclan Skyclan and Starclan where there ancestors go when they are dead were established before the knowing of Starclan. It is a warrior cat book and is about a little kitten who trains to be a great warrior and saves the clan from their doom while trying to have a life with friends a mate and kits. and it explains how her life was.