Thistleclaw was left in his own pool of blood, killed in battle, what he searched for most. Who was with him when he died and why'd he keep his secret for so long?

**this is for a competition** thanks @Wildheart66 for askin me to do this :o WindClan and ThunderClan are sent into another battle. Jayfeather is brought into it and is met by is arch enemy: Breezepelt. Who'll win?